12405316323 has 16 divisors (see below), whose sum is σ = 16784005280. Its totient is φ = 8149165056.

The previous prime is 12405316243. The next prime is 12405316349. The reversal of 12405316323 is 32361350421.

It is not a de Polignac number, because 12405316323 - 2²⁸ = 12136880867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12405316373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26440 + ... + 159717.

It is an arithmetic number, because the mean of its divisors is an integer number (1049000330).

Almost surely, 2^12405316323 is an apocalyptic number.

12405316323 is a deficient number, since it is larger than the sum of its proper divisors (4378688957).

12405316323 is a wasteful number, since it uses less digits than its factorization.

12405316323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186486.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 12405316323 its reverse (32361350421), we get a palindrome (44766666744).

The spelling of 12405316323 in words is "twelve billion, four hundred five million, three hundred sixteen thousand, three hundred twenty-three".