31103242192 has 40 divisors (see below), whose sum is σ = 65883720672. Its totient is φ = 14107132800.

The previous prime is 31103242151. The next prime is 31103242259. The reversal of 31103242192 is 29124230113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31103242192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110538 + ... + 272809.

Almost surely, 2^31103242192 is an apocalyptic number.

It is an amenable number.

31103242192 is an abundant number, since it is smaller than the sum of its proper divisors (34780478480).

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

31103242192 is a wasteful number, since it uses less digits than its factorization.

31103242192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383827 (or 383821 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 31103242192 in words is "thirty-one billion, one hundred three million, two hundred forty-two thousand, one hundred ninety-two".