12312013001 has 4 divisors (see below), whose sum is σ = 12312249600. Its totient is φ = 12311776404.

The previous prime is 12312012941. The next prime is 12312013009. The reversal of 12312013001 is 10031021321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10031021321 = 100103 ⋅100207.

It is a cyclic number.

It is not a de Polignac number, because 12312013001 - 2²⁶ = 12244904137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312013009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381 + ... + 156938.

It is an arithmetic number, because the mean of its divisors is an integer number (3078062400).

Almost surely, 2^12312013001 is an apocalyptic number.

It is an amenable number.

12312013001 is a deficient number, since it is larger than the sum of its proper divisors (236599).

12312013001 is an equidigital number, since it uses as much as digits as its factorization.

12312013001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236598.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12312013001 its reverse (10031021321), we get a palindrome (22343034322).

The spelling of 12312013001 in words is "twelve billion, three hundred twelve million, thirteen thousand, one".