15312444421313 has 8 divisors (see below), whose sum is σ = 16490355956928. Its totient is φ = 14134537342224.

The previous prime is 15312444421291. The next prime is 15312444421361. The reversal of 15312444421313 is 31312444421351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15312444421313 - 2²⁴ = 15312427644097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15312444421513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10527506 + ... + 11893412.

It is an arithmetic number, because the mean of its divisors is an integer number (2061294494616).

Almost surely, 2^{15312444421313} is an apocalyptic number.

15312444421313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15312444421313 is a deficient number, since it is larger than the sum of its proper divisors (1177911535615).

15312444421313 is a wasteful number, since it uses less digits than its factorization.

15312444421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228263.

The product of its digits is 138240, while the sum is 38.

Adding to 15312444421313 its sum of digits (38), we get a palindrome (15312444421351).

Adding to 15312444421313 its reverse (31312444421351), we get a palindrome (46624888842664).

The spelling of 15312444421313 in words is "fifteen trillion, three hundred twelve billion, four hundred forty-four million, four hundred twenty-one thousand, three hundred thirteen".