231231030130 has 32 divisors (see below), whose sum is σ = 417703955760. Its totient is φ = 92162058240.

The previous prime is 231231030109. The next prime is 231231030133. The reversal of 231231030130 is 31030132132.

It can be written as a sum of positive squares in 8 ways, for example, as 108269295849 + 122961734281 = 329043^2 + 350659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231231030098 and 231231030107.

It is not an unprimeable number, because it can be changed into a prime (231231030133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5779836 + ... + 5819704.

Almost surely, 2^231231030130 is an apocalyptic number.

231231030130 is a deficient number, since it is larger than the sum of its proper divisors (186472925630).

231231030130 is a wasteful number, since it uses less digits than its factorization.

231231030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41934.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231231030130 its reverse (31030132132), we get a palindrome (262261162262).

The spelling of 231231030130 in words is "two hundred thirty-one billion, two hundred thirty-one million, thirty thousand, one hundred thirty".