31230013112 has 16 divisors (see below), whose sum is σ = 58613641800. Its totient is φ = 15599708640.

The previous prime is 31230013109. The next prime is 31230013201. The reversal of 31230013112 is 21131003213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903562 + ... + 1919897.

Almost surely, 2^31230013112 is an apocalyptic number.

It is an amenable number.

31230013112 is a deficient number, since it is larger than the sum of its proper divisors (27383628688).

31230013112 is a wasteful number, since it uses less digits than its factorization.

31230013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824486 (or 3824482 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31230013112 its reverse (21131003213), we get a palindrome (52361016325).

The spelling of 31230013112 in words is "thirty-one billion, two hundred thirty million, thirteen thousand, one hundred twelve".