123245020552553 has 2 divisors, whose sum is σ = 123245020552554. Its totient is φ = 123245020552552.

The previous prime is 123245020552531. The next prime is 123245020552567. The reversal of 123245020552553 is 355255020542321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86170524364864 + 37074496187689 = 9282808^2 + 6088883^2 .

It is a cyclic number.

It is not a de Polignac number, because 123245020552553 - 2¹⁰ = 123245020551529 is a prime.

It is a super-2 number, since 2×123245020552553² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123245020552523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61622510276276 + 61622510276277.

It is an arithmetic number, because the mean of its divisors is an integer number (61622510276277).

Almost surely, 2^{123245020552553} is an apocalyptic number.

It is an amenable number.

123245020552553 is a deficient number, since it is larger than the sum of its proper divisors (1).

123245020552553 is an equidigital number, since it uses as much as digits as its factorization.

123245020552553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 123245020552553 in words is "one hundred twenty-three trillion, two hundred forty-five billion, twenty million, five hundred fifty-two thousand, five hundred fifty-three".