31312224044 has 36 divisors (see below), whose sum is σ = 58393625136. Its totient is φ = 14688509184.

The previous prime is 31312224017. The next prime is 31312224049. The reversal of 31312224044 is 44042221313.

It is not an unprimeable number, because it can be changed into a prime (31312224049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323729 + ... + 409175.

Almost surely, 2^31312224044 is an apocalyptic number.

31312224044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31312224044 is a deficient number, since it is larger than the sum of its proper divisors (27081401092).

31312224044 is a wasteful number, since it uses less digits than its factorization.

31312224044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85802 (or 85783 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31312224044 its reverse (44042221313), we get a palindrome (75354445357).

The spelling of 31312224044 in words is "thirty-one billion, three hundred twelve million, two hundred twenty-four thousand, forty-four".