31011010112 has 28 divisors (see below), whose sum is σ = 61801612236. Its totient is φ = 15438950400.

The previous prime is 31011010109. The next prime is 31011010123. The reversal of 31011010112 is 21101011013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1955762176 + 29055247936 = 44224^2 + 170456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31011010093 and 31011010102.

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, 1024889 + ... + 1054712.

It is an arithmetic number, because the mean of its divisors is an integer number (2207200437).

Almost surely, 2^31011010112 is an apocalyptic number.

31011010112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31011010112 is a deficient number, since it is larger than the sum of its proper divisors (30790602124).

31011010112 is a wasteful number, since it uses less digits than its factorization.

31011010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079846 (or 2079836 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 31011010112 its reverse (21101011013), we get a palindrome (52112021125).

Subtracting from 31011010112 its reverse (21101011013), we obtain a palindrome (9909999099).

The spelling of 31011010112 in words is "thirty-one billion, eleven million, ten thousand, one hundred twelve".