231313130 has 16 divisors (see below), whose sum is σ = 416537640. Its totient is φ = 92486592.

The previous prime is 231313123. The next prime is 231313153. The reversal of 231313130 is 31313132.

It can be written as a sum of positive squares in 4 ways, for example, as 187607809 + 43705321 = 13697^2 + 6611^2 .

It is a super-2 number, since 2×231313130² = 107011528220793800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231313099 and 231313108.

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, 40916 + ... + 46224.

Almost surely, 2^231313130 is an apocalyptic number.

231313130 is a deficient number, since it is larger than the sum of its proper divisors (185224510).

231313130 is a wasteful number, since it uses less digits than its factorization.

231313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9673.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 231313130 is about 15208.9818857148. The cubic root of 231313130 is about 613.8563627549.

Adding to 231313130 its reverse (31313132), we get a palindrome (262626262).

The spelling of 231313130 in words is "two hundred thirty-one million, three hundred thirteen thousand, one hundred thirty".