231024432530 has 16 divisors (see below), whose sum is σ = 415875259800. Its totient is φ = 92402821632.

The previous prime is 231024432493. The next prime is 231024432539. The reversal of 231024432530 is 35234420132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 142957341409 + 88067091121 = 378097^2 + 296761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231024432493 and 231024432502.

It is not an unprimeable number, because it can be changed into a prime (231024432539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728255 + ... + 996194.

Almost surely, 2^231024432530 is an apocalyptic number.

231024432530 is a deficient number, since it is larger than the sum of its proper divisors (184850827270).

231024432530 is a wasteful number, since it uses less digits than its factorization.

231024432530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737853.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 231024432530 its reverse (35234420132), we get a palindrome (266258852662).

The spelling of 231024432530 in words is "two hundred thirty-one billion, twenty-four million, four hundred thirty-two thousand, five hundred thirty".