31505240322052 has 12 divisors (see below), whose sum is σ = 63010480644160. Its totient is φ = 13502245852296.

The previous prime is 31505240322029. The next prime is 31505240322097. The reversal of 31505240322052 is 25022304250513.

31505240322052 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31505240321999 and 31505240322017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562593577152 + ... + 562593577207.

Almost surely, 2^{31505240322052} is an apocalyptic number.

It is an amenable number.

31505240322052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31505240322052 is a wasteful number, since it uses less digits than its factorization.

31505240322052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125187154370 (or 1125187154368 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 31505240322052 its reverse (25022304250513), we get a palindrome (56527544572565).

The spelling of 31505240322052 in words is "thirty-one trillion, five hundred five billion, two hundred forty million, three hundred twenty-two thousand, fifty-two".