31201113104 has 20 divisors (see below), whose sum is σ = 69088179264. Its totient is φ = 13371905568.

The previous prime is 31201113101. The next prime is 31201113179. The reversal of 31201113104 is 40131110213.

It is not an unprimeable number, because it can be changed into a prime (31201113101) 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, 139290572 + ... + 139290795.

Almost surely, 2^31201113104 is an apocalyptic number.

It is an amenable number.

31201113104 is an abundant number, since it is smaller than the sum of its proper divisors (37887066160).

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

31201113104 is a wasteful number, since it uses less digits than its factorization.

31201113104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278581382 (or 278581376 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31201113104 its reverse (40131110213), we get a palindrome (71332223317).

The spelling of 31201113104 in words is "thirty-one billion, two hundred one million, one hundred thirteen thousand, one hundred four".