31431102304332 has 24 divisors (see below), whose sum is σ = 73377179394736. Its totient is φ = 10471614003648.

The previous prime is 31431102304309. The next prime is 31431102304367. The reversal of 31431102304332 is 23340320113413.

It is a self number, because there is not a number n which added to its sum of digits gives 31431102304332.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 677488063 + ... + 677534454.

Almost surely, 2^{31431102304332} is an apocalyptic number.

It is an amenable number.

31431102304332 is an abundant number, since it is smaller than the sum of its proper divisors (41946077090404).

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

31431102304332 is a wasteful number, since it uses less digits than its factorization.

31431102304332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355024457 (or 1355024455 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31431102304332 its reverse (23340320113413), we get a palindrome (54771422417745).

The spelling of 31431102304332 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred two million, three hundred four thousand, three hundred thirty-two".