31312124322040 has 32 divisors (see below), whose sum is σ = 71646386166000. Its totient is φ = 12312564139264.

The previous prime is 31312124322007. The next prime is 31312124322053. The reversal of 31312124322040 is 4022342121313.

It is a congruent number.

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, 6633922285 + ... + 6633927004.

Almost surely, 2^{31312124322040} is an apocalyptic number.

It is an amenable number.

31312124322040 is an abundant number, since it is smaller than the sum of its proper divisors (40334261843960).

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

31312124322040 is a wasteful number, since it uses less digits than its factorization.

31312124322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13267849359 (or 13267849355 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31312124322040 its reverse (4022342121313), we get a palindrome (35334466443353).

The spelling of 31312124322040 in words is "thirty-one trillion, three hundred twelve billion, one hundred twenty-four million, three hundred twenty-two thousand, forty".