123766423441 has 4 divisors (see below), whose sum is σ = 123861849892. Its totient is φ = 123670996992.

The previous prime is 123766423411. The next prime is 123766423471. The reversal of 123766423441 is 144324667321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (123766423411) and next prime (123766423471).

It can be written as a sum of positive squares in 2 ways, for example, as 101745050625 + 22021372816 = 318975^2 + 148396^2 .

It is a cyclic number.

It is not a de Polignac number, because 123766423441 - 2¹³ = 123766415249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123766423411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47711280 + ... + 47713873.

It is an arithmetic number, because the mean of its divisors is an integer number (30965462473).

Almost surely, 2^123766423441 is an apocalyptic number.

It is an amenable number.

123766423441 is a deficient number, since it is larger than the sum of its proper divisors (95426451).

123766423441 is an equidigital number, since it uses as much as digits as its factorization.

123766423441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95426450.

The product of its digits is 580608, while the sum is 43.

The spelling of 123766423441 in words is "one hundred twenty-three billion, seven hundred sixty-six million, four hundred twenty-three thousand, four hundred forty-one".