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31023003323 = 132349525983
BaseRepresentation
bin11100111001000111…
…010111011010111011
32222002001020212010002
4130321013113122323
51002013342101243
622130214343215
72145531114554
oct347107273273
988061225102
1031023003323
111217a749624
12601965ab0b
132c052c7700
14170426332b
15c18850eb8
hex7391d76bb

31023003323 has 12 divisors (see below), whose sum is σ = 33689275200. Its totient is φ = 28554510816.

The previous prime is 31023003283. The next prime is 31023003343. The reversal of 31023003323 is 32330032013.

It is not a de Polignac number, because 31023003323 - 216 = 31022937787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31023003295 and 31023003304.

It is not an unprimeable number, because it can be changed into a prime (31023003343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204011 + ... + 321972.

It is an arithmetic number, because the mean of its divisors is an integer number (2807439600).

Almost surely, 231023003323 is an apocalyptic number.

31023003323 is a deficient number, since it is larger than the sum of its proper divisors (2666271877).

31023003323 is a wasteful number, since it uses less digits than its factorization.

31023003323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526358 (or 526345 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 31023003323 its reverse (32330032013), we get a palindrome (63353035336).

The spelling of 31023003323 in words is "thirty-one billion, twenty-three million, three thousand, three hundred twenty-three".

Divisors: 1 13 169 349 4537 58981 525983 6837779 88891127 183568067 2386384871 31023003323