31013201112 has 32 divisors (see below), whose sum is σ = 80206556400. Its totient is φ = 9981259904.

The previous prime is 31013201069. The next prime is 31013201123. The reversal of 31013201112 is 21110231013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31013201091 and 31013201100.

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, 22278903 + ... + 22280294.

Almost surely, 2^31013201112 is an apocalyptic number.

It is an amenable number.

31013201112 is an abundant number, since it is smaller than the sum of its proper divisors (49193355288).

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

31013201112 is a wasteful number, since it uses less digits than its factorization.

31013201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44559235 (or 44559231 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31013201112 its reverse (21110231013), we get a palindrome (52123432125).

The spelling of 31013201112 in words is "thirty-one billion, thirteen million, two hundred one thousand, one hundred twelve".