231304430130 has 128 divisors (see below), whose sum is σ = 584954265600. Its totient is φ = 58457875200.

The previous prime is 231304430113. The next prime is 231304430179. The reversal of 231304430130 is 31034403132.

It is a self number, because there is not a number n which added to its sum of digits gives 231304430130.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14752195 + ... + 14767865.

It is an arithmetic number, because the mean of its divisors is an integer number (4569955200).

Almost surely, 2^231304430130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231304430130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292477132800).

231304430130 is an abundant number, since it is smaller than the sum of its proper divisors (353649835470).

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

231304430130 is a wasteful number, since it uses less digits than its factorization.

231304430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16040.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231304430130 its reverse (31034403132), we get a palindrome (262338833262).

The spelling of 231304430130 in words is "two hundred thirty-one billion, three hundred four million, four hundred thirty thousand, one hundred thirty".