123031134345023 has 2 divisors, whose sum is σ = 123031134345024. Its totient is φ = 123031134345022.

The previous prime is 123031134345001. The next prime is 123031134345139. The reversal of 123031134345023 is 320543431130321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123031134345023 - 2¹⁴ = 123031134328639 is a prime.

It is a super-2 number, since 2×123031134345023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123031134545023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515567172511 + 61515567172512.

It is an arithmetic number, because the mean of its divisors is an integer number (61515567172512).

Almost surely, 2^{123031134345023} is an apocalyptic number.

123031134345023 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031134345023 is an equidigital number, since it uses as much as digits as its factorization.

123031134345023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 123031134345023 its reverse (320543431130321), we get a palindrome (443574565475344).

The spelling of 123031134345023 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-four million, three hundred forty-five thousand, twenty-three".