31144312303012 has 12 divisors (see below), whose sum is σ = 54534438026460. Its totient is φ = 15563044295456.

The previous prime is 31144312302989. The next prime is 31144312303033. The reversal of 31144312303012 is 21030321344113.

It can be written as a sum of positive squares in 2 ways, for example, as 6102955213056 + 25041357089956 = 2470416^2 + 5004134^2 .

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, 2277956323 + ... + 2277969994.

It is an arithmetic number, because the mean of its divisors is an integer number (4544536502205).

Almost surely, 2^{31144312303012} is an apocalyptic number.

It is an amenable number.

31144312303012 is a deficient number, since it is larger than the sum of its proper divisors (23390125723448).

31144312303012 is a wasteful number, since it uses less digits than its factorization.

31144312303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555928030 (or 4555928028 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31144312303012 its reverse (21030321344113), we get a palindrome (52174633647125).

The spelling of 31144312303012 in words is "thirty-one trillion, one hundred forty-four billion, three hundred twelve million, three hundred three thousand, twelve".