31325052451 has 12 divisors (see below), whose sum is σ = 39350480176. Its totient is φ = 24409131120.

The previous prime is 31325052433. The next prime is 31325052457. The reversal of 31325052451 is 15425052313.

It is not a de Polignac number, because 31325052451 - 2⁷ = 31325052323 is a prime.

It is a super-2 number, since 2×31325052451² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31325052457) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18490920 + ... + 18492613.

Almost surely, 2^31325052451 is an apocalyptic number.

31325052451 is a deficient number, since it is larger than the sum of its proper divisors (8025427725).

31325052451 is a wasteful number, since it uses less digits than its factorization.

31325052451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36983562 (or 36983551 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 31325052451 in words is "thirty-one billion, three hundred twenty-five million, fifty-two thousand, four hundred fifty-one".