12315450013 has 4 divisors (see below), whose sum is σ = 12316198048. Its totient is φ = 12314701980.

The previous prime is 12315449999. The next prime is 12315450031. The reversal of 12315450013 is 31005451321.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12315450013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12315450013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315450083) 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, 348753 + ... + 382438.

It is an arithmetic number, because the mean of its divisors is an integer number (3079049512).

Almost surely, 2^12315450013 is an apocalyptic number.

It is an amenable number.

12315450013 is a deficient number, since it is larger than the sum of its proper divisors (748035).

12315450013 is an equidigital number, since it uses as much as digits as its factorization.

12315450013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748034.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12315450013 in words is "twelve billion, three hundred fifteen million, four hundred fifty thousand, thirteen".