31112330530 has 64 divisors (see below), whose sum is σ = 60825528288. Its totient is φ = 11411619840.

The previous prime is 31112330527. The next prime is 31112330573. The reversal of 31112330530 is 3503321113.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1375742281 + 29736588249 = 37091^2 + 172443^2 .

It is a super-2 number, since 2×31112330530² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5942794 + ... + 5948026.

Almost surely, 2^31112330530 is an apocalyptic number.

31112330530 is a deficient number, since it is larger than the sum of its proper divisors (29713197758).

31112330530 is a wasteful number, since it uses less digits than its factorization.

31112330530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151.

The product of its (nonzero) digits is 810, while the sum is 22.

Adding to 31112330530 its reverse (3503321113), we get a palindrome (34615651643).

The spelling of 31112330530 in words is "thirty-one billion, one hundred twelve million, three hundred thirty thousand, five hundred thirty".