31630312706 has 8 divisors (see below), whose sum is σ = 47934597900. Its totient is φ = 15652113408.

The previous prime is 31630312697. The next prime is 31630312717. The reversal of 31630312706 is 60721303613.

It can be written as a sum of positive squares in 2 ways, for example, as 27791890681 + 3838422025 = 166709^2 + 61955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 81521231 + ... + 81521618.

Almost surely, 2^31630312706 is an apocalyptic number.

31630312706 is a deficient number, since it is larger than the sum of its proper divisors (16304285194).

31630312706 is a wasteful number, since it uses less digits than its factorization.

31630312706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163042948.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 31630312706 in words is "thirty-one billion, six hundred thirty million, three hundred twelve thousand, seven hundred six".