31132002044 has 48 divisors (see below), whose sum is σ = 64639493856. Its totient is φ = 12933024000.

The previous prime is 31132002007. The next prime is 31132002149. The reversal of 31132002044 is 44020023113.

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 15 ways as a sum of consecutive naturals, for example, 211667 + ... + 327210.

It is an arithmetic number, because the mean of its divisors is an integer number (1346656122).

Almost surely, 2^31132002044 is an apocalyptic number.

It is an amenable number.

31132002044 is an abundant number, since it is smaller than the sum of its proper divisors (33507491812).

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

31132002044 is a wasteful number, since it uses less digits than its factorization.

31132002044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539006 (or 539004 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31132002044 its reverse (44020023113), we get a palindrome (75152025157).

The spelling of 31132002044 in words is "thirty-one billion, one hundred thirty-two million, two thousand, forty-four".