31120311130 has 16 divisors (see below), whose sum is σ = 57530521800. Its totient is φ = 12111688512.

The previous prime is 31120311119. The next prime is 31120311203. The reversal of 31120311130 is 3111302113.

It can be written as a sum of positive squares in 4 ways, for example, as 22407395481 + 8712915649 = 149691^2 + 93343^2 .

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, 42054105 + ... + 42054844.

Almost surely, 2^31120311130 is an apocalyptic number.

31120311130 is a deficient number, since it is larger than the sum of its proper divisors (26410210670).

31120311130 is a wasteful number, since it uses less digits than its factorization.

31120311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84108993.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31120311130 its reverse (3111302113), we get a palindrome (34231613243).

The spelling of 31120311130 in words is "thirty-one billion, one hundred twenty million, three hundred eleven thousand, one hundred thirty".