31421311012232 has 32 divisors (see below), whose sum is σ = 59026502121600. Its totient is φ = 15680924529984.

The previous prime is 31421311012207. The next prime is 31421311012339. The reversal of 31421311012232 is 23221011312413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17013473 + ... + 18769679.

It is an arithmetic number, because the mean of its divisors is an integer number (1844578191300).

Almost surely, 2^{31421311012232} is an apocalyptic number.

It is an amenable number.

31421311012232 is a deficient number, since it is larger than the sum of its proper divisors (27605191109368).

31421311012232 is a wasteful number, since it uses less digits than its factorization.

31421311012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760445 (or 1760441 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 31421311012232 its reverse (23221011312413), we get a palindrome (54642322324645).

The spelling of 31421311012232 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred eleven million, twelve thousand, two hundred thirty-two".