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101223311213 = 234401013531
BaseRepresentation
bin101111001000101100…
…0010010011101101101
3100200021102111222202102
41132101120102131231
53124301131424323
6114300142504445
710212256643333
oct1362130223555
9320242458672
10101223311213
1139a23a13a02
121774b595125
1397120a652b
144c836dbb53
15297682c328
hex179161276d

101223311213 has 4 divisors (see below), whose sum is σ = 105624324768. Its totient is φ = 96822297660.

The previous prime is 101223311183. The next prime is 101223311219. The reversal of 101223311213 is 312113322101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101223311213 - 212 = 101223307117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223311219) 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 3 ways as a sum of consecutive naturals, for example, 2200506743 + ... + 2200506788.

It is an arithmetic number, because the mean of its divisors is an integer number (26406081192).

Almost surely, 2101223311213 is an apocalyptic number.

It is an amenable number.

101223311213 is a deficient number, since it is larger than the sum of its proper divisors (4401013555).

101223311213 is an equidigital number, since it uses as much as digits as its factorization.

101223311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401013554.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101223311213 its reverse (312113322101), we get a palindrome (413336633314).

The spelling of 101223311213 in words is "one hundred one billion, two hundred twenty-three million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 23 4401013531 101223311213