31313253340552 has 32 divisors (see below), whose sum is σ = 62166564016920. Its totient is φ = 14735519124480.

The previous prime is 31313253340549. The next prime is 31313253340609. The reversal of 31313253340552 is 25504335231313.

It can be written as a sum of positive squares in 4 ways, for example, as 29089259754916 + 2223993585636 = 5393446^2 + 1491306^2 .

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, 15507598 + ... + 17410114.

Almost surely, 2^{31313253340552} is an apocalyptic number.

It is an amenable number.

31313253340552 is a deficient number, since it is larger than the sum of its proper divisors (30853310676368).

31313253340552 is a wasteful number, since it uses less digits than its factorization.

31313253340552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023561 (or 2023557 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 40.

Adding to 31313253340552 its reverse (25504335231313), we get a palindrome (56817588571865).

The spelling of 31313253340552 in words is "thirty-one trillion, three hundred thirteen billion, two hundred fifty-three million, three hundred forty thousand, five hundred fifty-two".