31104104172 has 12 divisors (see below), whose sum is σ = 72576243096. Its totient is φ = 10368034720.

The previous prime is 31104104159. The next prime is 31104104177. The reversal of 31104104172 is 27140140113.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31104104177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296004329 + ... + 1296004352.

It is an arithmetic number, because the mean of its divisors is an integer number (6048020258).

Almost surely, 2^31104104172 is an apocalyptic number.

It is an amenable number.

31104104172 is an abundant number, since it is smaller than the sum of its proper divisors (41472138924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31104104172 is a wasteful number, since it uses less digits than its factorization.

31104104172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592008688 (or 2592008686 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 31104104172 its reverse (27140140113), we get a palindrome (58244244285).

The spelling of 31104104172 in words is "thirty-one billion, one hundred four million, one hundred four thousand, one hundred seventy-two".