31113223130 has 64 divisors (see below), whose sum is σ = 62155029888. Its totient is φ = 11119042560.

The previous prime is 31113223111. The next prime is 31113223199. The reversal of 31113223130 is 3132231113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1753262 + ... + 1770918.

It is an arithmetic number, because the mean of its divisors is an integer number (971172342).

Almost surely, 2^31113223130 is an apocalyptic number.

31113223130 is a deficient number, since it is larger than the sum of its proper divisors (31041806758).

31113223130 is a wasteful number, since it uses less digits than its factorization.

31113223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17951.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31113223130 its reverse (3132231113), we get a palindrome (34245454243).

The spelling of 31113223130 in words is "thirty-one billion, one hundred thirteen million, two hundred twenty-three thousand, one hundred thirty".