31331023130 has 32 divisors (see below), whose sum is σ = 62531319168. Its totient is φ = 11206324800.

The previous prime is 31331023121. The next prime is 31331023189. The reversal of 31331023130 is 3132013313.

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, 2327942 + ... + 2341361.

It is an arithmetic number, because the mean of its divisors is an integer number (1954103724).

Almost surely, 2^31331023130 is an apocalyptic number.

31331023130 is a deficient number, since it is larger than the sum of its proper divisors (31200296038).

31331023130 is a wasteful number, since it uses less digits than its factorization.

31331023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669382.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31331023130 its reverse (3132013313), we get a palindrome (34463036443).

The spelling of 31331023130 in words is "thirty-one billion, three hundred thirty-one million, twenty-three thousand, one hundred thirty".