31231132003312 has 40 divisors (see below), whose sum is σ = 63754992613760. Its totient is φ = 14779777026240.

The previous prime is 31231132003307. The next prime is 31231132003333. The reversal of 31231132003312 is 21330023113213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47999514 + ... + 48645817.

It is an arithmetic number, because the mean of its divisors is an integer number (1593874815344).

Almost surely, 2^{31231132003312} is an apocalyptic number.

It is an amenable number.

31231132003312 is an abundant number, since it is smaller than the sum of its proper divisors (32523860610448).

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

31231132003312 is a wasteful number, since it uses less digits than its factorization.

31231132003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96646421 (or 96646415 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31231132003312 its reverse (21330023113213), we get a palindrome (52561155116525).

The spelling of 31231132003312 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred thirty-two million, three thousand, three hundred twelve".