231313223130 has 192 divisors, whose sum is σ = 627429172608. Its totient is φ = 54503680000.

The previous prime is 231313223117. The next prime is 231313223137. The reversal of 231313223130 is 31322313132.

It is a self number, because there is not a number n which added to its sum of digits gives 231313223130.

It is not an unprimeable number, because it can be changed into a prime (231313223137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 41818465 + ... + 41823995.

It is an arithmetic number, because the mean of its divisors is an integer number (3267860274).

Almost surely, 2^231313223130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231313223130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313714586304).

231313223130 is an abundant number, since it is smaller than the sum of its proper divisors (396115949478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231313223130 is a wasteful number, since it uses less digits than its factorization.

231313223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885 (or 5874 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231313223130 its reverse (31322313132), we get a palindrome (262635536262).

The spelling of 231313223130 in words is "two hundred thirty-one billion, three hundred thirteen million, two hundred twenty-three thousand, one hundred thirty".