231011213323223 has 2 divisors, whose sum is σ = 231011213323224. Its totient is φ = 231011213323222.

The previous prime is 231011213323153. The next prime is 231011213323301. The reversal of 231011213323223 is 322323312110132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231011213323223 is a prime.

It is a super-2 number, since 2×231011213323223² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231011213323823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115505606661611 + 115505606661612.

It is an arithmetic number, because the mean of its divisors is an integer number (115505606661612).

Almost surely, 2^{231011213323223} is an apocalyptic number.

231011213323223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231011213323223 is an equidigital number, since it uses as much as digits as its factorization.

231011213323223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 231011213323223 its reverse (322323312110132), we get a palindrome (553334525433355).

The spelling of 231011213323223 in words is "two hundred thirty-one trillion, eleven billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred twenty-three".