123077245409 has 4 divisors (see below), whose sum is σ = 128428430016. Its totient is φ = 117726060804.

The previous prime is 123077245397. The next prime is 123077245411. The reversal of 123077245409 is 904542770321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123077245409 - 2²⁰ = 123076196833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123077245409.

It is not an unprimeable number, because it can be changed into a prime (123077245309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2675592269 + ... + 2675592314.

It is an arithmetic number, because the mean of its divisors is an integer number (32107107504).

Almost surely, 2^123077245409 is an apocalyptic number.

It is an amenable number.

123077245409 is a deficient number, since it is larger than the sum of its proper divisors (5351184607).

123077245409 is an equidigital number, since it uses as much as digits as its factorization.

123077245409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351184606.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 123077245409 in words is "one hundred twenty-three billion, seventy-seven million, two hundred forty-five thousand, four hundred nine".