631390132373 has 32 divisors (see below), whose sum is σ = 860393533440. Its totient is φ = 447368391360.

The previous prime is 631390132337. The next prime is 631390132409. The reversal of 631390132373 is 373231093136.

It is an interprime number because it is at equal distance from previous prime (631390132337) and next prime (631390132409).

It is not a de Polignac number, because 631390132373 - 2³² = 627095165077 is a prime.

It is a super-2 number, since 2×631390132373² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631390132373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631390132273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4640093 + ... + 4774226.

It is an arithmetic number, because the mean of its divisors is an integer number (26887297920).

Almost surely, 2^631390132373 is an apocalyptic number.

It is an amenable number.

631390132373 is a deficient number, since it is larger than the sum of its proper divisors (229003401067).

631390132373 is a wasteful number, since it uses less digits than its factorization.

631390132373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414417.

The product of its (nonzero) digits is 183708, while the sum is 41.

The spelling of 631390132373 in words is "six hundred thirty-one billion, three hundred ninety million, one hundred thirty-two thousand, three hundred seventy-three".