123458315478331 has 2 divisors, whose sum is σ = 123458315478332. Its totient is φ = 123458315478330.

The previous prime is 123458315478313. The next prime is 123458315478367. The reversal of 123458315478331 is 133874513854321.

It is a happy number.

Together with previous prime (123458315478313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (133874513854321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123458315478331 - 2⁵ = 123458315478299 is a prime.

It is a super-2 number, since 2×123458315478331² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123458315478431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61729157739165 + 61729157739166.

It is an arithmetic number, because the mean of its divisors is an integer number (61729157739166).

Almost surely, 2^{123458315478331} is an apocalyptic number.

123458315478331 is a deficient number, since it is larger than the sum of its proper divisors (1).

123458315478331 is an equidigital number, since it uses as much as digits as its factorization.

123458315478331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 58.

The spelling of 123458315478331 in words is "one hundred twenty-three trillion, four hundred fifty-eight billion, three hundred fifteen million, four hundred seventy-eight thousand, three hundred thirty-one".