234331231 has 2 divisors, whose sum is σ = 234331232. Its totient is φ = 234331230.

The previous prime is 234331219. The next prime is 234331271. The reversal of 234331231 is 132133432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234331231 - 2⁷ = 234331103 is a prime.

It is a super-2 number, since 2×234331231² = 109822251643950722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234331271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117165615 + 117165616.

It is an arithmetic number, because the mean of its divisors is an integer number (117165616).

Almost surely, 2^234331231 is an apocalyptic number.

234331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

234331231 is an equidigital number, since it uses as much as digits as its factorization.

234331231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 22.

The square root of 234331231 is about 15307.8813360961. The cubic root of 234331231 is about 616.5146362337.

Adding to 234331231 its reverse (132133432), we get a palindrome (366464663).

The spelling of 234331231 in words is "two hundred thirty-four million, three hundred thirty-one thousand, two hundred thirty-one".