12423308564499 has 32 divisors (see below), whose sum is σ = 18950843111424. Its totient is φ = 7091502687360.

The previous prime is 12423308564497. The next prime is 12423308564501. The reversal of 12423308564499 is 99446580332421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12423308564497) and next prime (12423308564501).

It is not a de Polignac number, because 12423308564499 - 2¹ = 12423308564497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12423308564497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173787334 + ... + 173858804.

It is an arithmetic number, because the mean of its divisors is an integer number (592213847232).

Almost surely, 2^{12423308564499} is an apocalyptic number.

12423308564499 is a deficient number, since it is larger than the sum of its proper divisors (6527534546925).

12423308564499 is a wasteful number, since it uses less digits than its factorization.

12423308564499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80147.

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 12423308564499 in words is "twelve trillion, four hundred twenty-three billion, three hundred eight million, five hundred sixty-four thousand, four hundred ninety-nine".