231234251 has 2 divisors, whose sum is σ = 231234252. Its totient is φ = 231234250.

The previous prime is 231234233. The next prime is 231234253. The reversal of 231234251 is 152432132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231234251 - 2¹⁰ = 231233227 is a prime.

Together with 231234253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231234253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115617125 + 115617126.

It is an arithmetic number, because the mean of its divisors is an integer number (115617126).

Almost surely, 2^231234251 is an apocalyptic number.

231234251 is a deficient number, since it is larger than the sum of its proper divisors (1).

231234251 is an equidigital number, since it uses as much as digits as its factorization.

231234251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 231234251 is about 15206.3884929986. The cubic root of 231234251 is about 613.7865787339.

Adding to 231234251 its reverse (152432132), we get a palindrome (383666383).

It can be divided in two parts, 2312 and 34251, that added together give a palindrome (36563).

The spelling of 231234251 in words is "two hundred thirty-one million, two hundred thirty-four thousand, two hundred fifty-one".