12423009213955 has 4 divisors (see below), whose sum is σ = 14907611056752. Its totient is φ = 9938407371160.

The previous prime is 12423009213941. The next prime is 12423009213959. The reversal of 12423009213955 is 55931290032421.

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

It is a de Polignac number, because none of the positive numbers 2^k-12423009213955 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423009213959) 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, 1242300921391 + ... + 1242300921400.

It is an arithmetic number, because the mean of its divisors is an integer number (3726902764188).

Almost surely, 2^{12423009213955} is an apocalyptic number.

12423009213955 is a deficient number, since it is larger than the sum of its proper divisors (2484601842797).

12423009213955 is an equidigital number, since it uses as much as digits as its factorization.

12423009213955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484601842796.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 12423009213955 in words is "twelve trillion, four hundred twenty-three billion, nine million, two hundred thirteen thousand, nine hundred fifty-five".