631406330112 has 36 divisors (see below), whose sum is σ = 1680461641040. Its totient is φ = 210468776448.

The previous prime is 631406330101. The next prime is 631406330251. The reversal of 631406330112 is 211033604136.

It is a self number, because there is not a number n which added to its sum of digits gives 631406330112.

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, 411071062 + ... + 411072597.

Almost surely, 2^631406330112 is an apocalyptic number.

It is an amenable number.

631406330112 is an abundant number, since it is smaller than the sum of its proper divisors (1049055310928).

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

631406330112 is an equidigital number, since it uses as much as digits as its factorization.

631406330112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822143678 (or 822143664 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 631406330112 its reverse (211033604136), we get a palindrome (842439934248).

The spelling of 631406330112 in words is "six hundred thirty-one billion, four hundred six million, three hundred thirty thousand, one hundred twelve".