231326430 has 32 divisors (see below), whose sum is σ = 557099424. Its totient is φ = 61474176.

The previous prime is 231326423. The next prime is 231326483. The reversal of 231326430 is 34623132.

It is a self number, because there is not a number n which added to its sum of digits gives 231326430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4369 + ... + 21948.

It is an arithmetic number, because the mean of its divisors is an integer number (17409357).

Almost surely, 2^231326430 is an apocalyptic number.

231326430 is an abundant number, since it is smaller than the sum of its proper divisors (325772994).

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

231326430 is a wasteful number, since it uses less digits than its factorization.

231326430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26620.

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

The square root of 231326430 is about 15209.4191210578. The cubic root of 231326430 is about 613.8681276630.

Adding to 231326430 its reverse (34623132), we get a palindrome (265949562).

The spelling of 231326430 in words is "two hundred thirty-one million, three hundred twenty-six thousand, four hundred thirty".