12323131403 has 16 divisors (see below), whose sum is σ = 13505395680. Its totient is φ = 11151283200.

The previous prime is 12323131363. The next prime is 12323131427. The reversal of 12323131403 is 30413132321.

It is a cyclic number.

It is not a de Polignac number, because 12323131403 - 2²⁴ = 12306354187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12323131453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5754713 + ... + 5756853.

It is an arithmetic number, because the mean of its divisors is an integer number (844087230).

Almost surely, 2^12323131403 is an apocalyptic number.

12323131403 is a deficient number, since it is larger than the sum of its proper divisors (1182264277).

12323131403 is a wasteful number, since it uses less digits than its factorization.

12323131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12323131403 its reverse (30413132321), we get a palindrome (42736263724).

The spelling of 12323131403 in words is "twelve billion, three hundred twenty-three million, one hundred thirty-one thousand, four hundred three".