31104805113 has 32 divisors (see below), whose sum is σ = 48300564480. Its totient is φ = 19745914320.

The previous prime is 31104805093. The next prime is 31104805163. The reversal of 31104805113 is 31150840113.

It is not a de Polignac number, because 31104805113 - 2²² = 31100610809 is a prime.

It is a super-2 number, since 2×31104805113² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31104805163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26178 + ... + 250788.

It is an arithmetic number, because the mean of its divisors is an integer number (1509392640).

Almost surely, 2^31104805113 is an apocalyptic number.

It is an amenable number.

31104805113 is a deficient number, since it is larger than the sum of its proper divisors (17195759367).

31104805113 is a wasteful number, since it uses less digits than its factorization.

31104805113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224866 (or 224860 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 31104805113 in words is "thirty-one billion, one hundred four million, eight hundred five thousand, one hundred thirteen".