31101132012 has 36 divisors (see below), whose sum is σ = 75158011656. Its totient is φ = 10009556480.

The previous prime is 31101131993. The next prime is 31101132037. The reversal of 31101132012 is 21023110113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31101131982 and 31101132000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530789 + ... + 1550972.

It is an arithmetic number, because the mean of its divisors is an integer number (2087722546).

Almost surely, 2^31101132012 is an apocalyptic number.

It is an amenable number.

31101132012 is an abundant number, since it is smaller than the sum of its proper divisors (44056879644).

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

31101132012 is a wasteful number, since it uses less digits than its factorization.

31101132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081826 (or 3081795 counting only the distinct ones).

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

Adding to 31101132012 its reverse (21023110113), we get a palindrome (52124242125).

The spelling of 31101132012 in words is "thirty-one billion, one hundred one million, one hundred thirty-two thousand, twelve".