31630131634 has 32 divisors (see below), whose sum is σ = 48647822400. Its totient is φ = 15419100480.

The previous prime is 31630131587. The next prime is 31630131667. The reversal of 31630131634 is 43613103613.

It is a junction number, because it is equal to n+sod(n) for n = 31630131596 and 31630131605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8890584 + ... + 8894140.

It is an arithmetic number, because the mean of its divisors is an integer number (1520244450).

Almost surely, 2^31630131634 is an apocalyptic number.

31630131634 is a deficient number, since it is larger than the sum of its proper divisors (17017690766).

31630131634 is a wasteful number, since it uses less digits than its factorization.

31630131634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 31630131634 in words is "thirty-one billion, six hundred thirty million, one hundred thirty-one thousand, six hundred thirty-four".