31032323012 has 12 divisors (see below), whose sum is σ = 55071446976. Its totient is φ = 15297623880.

The previous prime is 31032323011. The next prime is 31032323017. The reversal of 31032323012 is 21032323013.

It is a super-2 number, since 2×31032323012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31032323011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54634088 + ... + 54634655.

It is an arithmetic number, because the mean of its divisors is an integer number (4589287248).

Almost surely, 2^31032323012 is an apocalyptic number.

It is an amenable number.

31032323012 is a deficient number, since it is larger than the sum of its proper divisors (24039123964).

31032323012 is a wasteful number, since it uses less digits than its factorization.

31032323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109268818 (or 109268816 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31032323012 its reverse (21032323013), we get a palindrome (52064646025).

Subtracting from 31032323012 its reverse (21032323013), we obtain a palindrome (9999999999).

The spelling of 31032323012 in words is "thirty-one billion, thirty-two million, three hundred twenty-three thousand, twelve".