231344235223 has 2 divisors, whose sum is σ = 231344235224. Its totient is φ = 231344235222.

The previous prime is 231344235217. The next prime is 231344235251. The reversal of 231344235223 is 322532443132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231344235223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231344235203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115672117611 + 115672117612.

It is an arithmetic number, because the mean of its divisors is an integer number (115672117612).

Almost surely, 2^231344235223 is an apocalyptic number.

231344235223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231344235223 is an equidigital number, since it uses as much as digits as its factorization.

231344235223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 34.

Adding to 231344235223 its reverse (322532443132), we get a palindrome (553876678355).

The spelling of 231344235223 in words is "two hundred thirty-one billion, three hundred forty-four million, two hundred thirty-five thousand, two hundred twenty-three".