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320303121122201 = 72231971442683379
BaseRepresentation
bin100100011010100000110000…
…1110000010100001110011001
31120000002200100020021120000112
41020311001201300110032121
5313440321243001402301
63053121120020014105
7124316064635524100
oct11065014160241631
91500080306246015
10320303121122201
1193070877652098
122bb10a83231335
13109955bb029609
145914a7a52b037
152706c44dc09bb
hex1235061c14399

320303121122201 has 24 divisors (see below), whose sum is σ = 390770991040320. Its totient is φ = 261275730489312.

The previous prime is 320303121122143. The next prime is 320303121122233. The reversal of 320303121122201 is 102221121303023.

It is a de Polignac number, because none of the positive numbers 2k-320303121122201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320303121122291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 721119671 + ... + 721563708.

It is an arithmetic number, because the mean of its divisors is an integer number (16282124626680).

Almost surely, 2320303121122201 is an apocalyptic number.

It is an amenable number.

320303121122201 is a deficient number, since it is larger than the sum of its proper divisors (70467869918119).

320303121122201 is a wasteful number, since it uses less digits than its factorization.

320303121122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442683613 (or 1442683606 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 320303121122201 its reverse (102221121303023), we get a palindrome (422524242425224).

The spelling of 320303121122201 in words is "three hundred twenty trillion, three hundred three billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 7 23 49 161 197 1127 1379 4531 9653 31717 222019 1442683379 10098783653 33181717717 70691485571 232272024019 284208625663 1625904168133 1989460379641 6536798390249 13926222657487 45757588731743 320303121122201