31210020130 has 16 divisors (see below), whose sum is σ = 56620385280. Its totient is φ = 12385708272.

The previous prime is 31210020113. The next prime is 31210020143. The reversal of 31210020130 is 3102001213.

It is a self number, because there is not a number n which added to its sum of digits gives 31210020130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12286140 + ... + 12288679.

It is an arithmetic number, because the mean of its divisors is an integer number (3538774080).

Almost surely, 2^31210020130 is an apocalyptic number.

31210020130 is a deficient number, since it is larger than the sum of its proper divisors (25410365150).

31210020130 is a wasteful number, since it uses less digits than its factorization.

31210020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24574953.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31210020130 its reverse (3102001213), we get a palindrome (34312021343).

The spelling of 31210020130 in words is "thirty-one billion, two hundred ten million, twenty thousand, one hundred thirty".