31311001122112 has 56 divisors (see below), whose sum is σ = 62564841799200. Its totient is φ = 15546787923456.

The previous prime is 31311001122059. The next prime is 31311001122131. The reversal of 31311001122112 is 21122110011313.

It is a self number, because there is not a number n which added to its sum of digits gives 31311001122112.

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, 11599839 + ... + 14042017.

Almost surely, 2^{31311001122112} is an apocalyptic number.

31311001122112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31311001122112 is a deficient number, since it is larger than the sum of its proper divisors (31253840677088).

31311001122112 is a wasteful number, since it uses less digits than its factorization.

31311001122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443583 (or 2443573 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 31311001122112 its reverse (21122110011313), we get a palindrome (52433111133425).

The spelling of 31311001122112 in words is "thirty-one trillion, three hundred eleven billion, one million, one hundred twenty-two thousand, one hundred twelve".