31311102111023 has 8 divisors (see below), whose sum is σ = 35804141400192. Its totient is φ = 26823068997336.

The previous prime is 31311102111013. The next prime is 31311102111049. The reversal of 31311102111023 is 32011120111313.

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 31311102111023 - 2¹² = 31311102106927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31311102110986 and 31311102111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311102111013) 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, 1251530465 + ... + 1251555482.

It is an arithmetic number, because the mean of its divisors is an integer number (4475517675024).

Almost surely, 2^{31311102111023} is an apocalyptic number.

31311102111023 is a deficient number, since it is larger than the sum of its proper divisors (4493039289169).

31311102111023 is a wasteful number, since it uses less digits than its factorization.

31311102111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503087741.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31311102111023 its reverse (32011120111313), we get a palindrome (63322222222336).

The spelling of 31311102111023 in words is "thirty-one trillion, three hundred eleven billion, one hundred two million, one hundred eleven thousand, twenty-three".