31032112036 has 12 divisors (see below), whose sum is σ = 54403697628. Its totient is φ = 15488198432.

The previous prime is 31032112009. The next prime is 31032112037. The reversal of 31032112036 is 63021123013.

It can be written as a sum of positive squares in 2 ways, for example, as 10641985600 + 20390126436 = 103160^2 + 142794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31032111998 and 31032112016.

It is not an unprimeable number, because it can be changed into a prime (31032112037) 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, 6961891 + ... + 6966346.

It is an arithmetic number, because the mean of its divisors is an integer number (4533641469).

Almost surely, 2^31032112036 is an apocalyptic number.

It is an amenable number.

31032112036 is a deficient number, since it is larger than the sum of its proper divisors (23371585592).

31032112036 is a wasteful number, since it uses less digits than its factorization.

31032112036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13928798 (or 13928796 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31032112036 its reverse (63021123013), we get a palindrome (94053235049).

The spelling of 31032112036 in words is "thirty-one billion, thirty-two million, one hundred twelve thousand, thirty-six".