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31113032323 = 197572163181
BaseRepresentation
bin11100111110011110…
…110011001010000011
32222022022122210200111
4130332132303022003
51002204414013243
622143152132151
72151003261022
oct347636631203
988268583614
1031113032323
111221654a75a
126043837057
132c1ab598c9
1417121ba8b9
15c216d639d
hex73e7b3283

31113032323 has 8 divisors (see below), whose sum is σ = 32793839120. Its totient is φ = 29436553440.

The previous prime is 31113032299. The next prime is 31113032369. The reversal of 31113032323 is 32323031113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31113032323 - 29 = 31113031811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113032294 and 31113032303.

It is not an unprimeable number, because it can be changed into a prime (31113032383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067208 + ... + 1095973.

It is an arithmetic number, because the mean of its divisors is an integer number (4099229890).

Almost surely, 231113032323 is an apocalyptic number.

31113032323 is a deficient number, since it is larger than the sum of its proper divisors (1680806797).

31113032323 is a wasteful number, since it uses less digits than its factorization.

31113032323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163957.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31113032323 its reverse (32323031113), we get a palindrome (63436063436).

The spelling of 31113032323 in words is "thirty-one billion, one hundred thirteen million, thirty-two thousand, three hundred twenty-three".

Divisors: 1 19 757 14383 2163181 41100439 1637528017 31113032323