123411125920969 has 2 divisors, whose sum is σ = 123411125920970. Its totient is φ = 123411125920968.

The previous prime is 123411125920963. The next prime is 123411125921107. The reversal of 123411125920969 is 969029521114321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88577085171600 + 34834040749369 = 9411540^2 + 5902037^2 .

It is a cyclic number.

It is not a de Polignac number, because 123411125920969 - 2³ = 123411125920961 is a prime.

It is a super-2 number, since 2×123411125920969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123411125920961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61705562960484 + 61705562960485.

It is an arithmetic number, because the mean of its divisors is an integer number (61705562960485).

Almost surely, 2^{123411125920969} is an apocalyptic number.

It is an amenable number.

123411125920969 is a deficient number, since it is larger than the sum of its proper divisors (1).

123411125920969 is an equidigital number, since it uses as much as digits as its factorization.

123411125920969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 123411125920969 in words is "one hundred twenty-three trillion, four hundred eleven billion, one hundred twenty-five million, nine hundred twenty thousand, nine hundred sixty-nine".