15113432324321 has 4 divisors (see below), whose sum is σ = 15113446391472. Its totient is φ = 15113418257172.

The previous prime is 15113432324273. The next prime is 15113432324329. The reversal of 15113432324321 is 12342323431151.

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-15113432324321 is a prime.

It is a super-2 number, since 2×15113432324321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15113432324329) 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, 5275535 + ... + 7619588.

It is an arithmetic number, because the mean of its divisors is an integer number (3778361597868).

Almost surely, 2^{15113432324321} is an apocalyptic number.

It is an amenable number.

15113432324321 is a deficient number, since it is larger than the sum of its proper divisors (14067151).

15113432324321 is a wasteful number, since it uses less digits than its factorization.

15113432324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14067150.

The product of its digits is 51840, while the sum is 35.

Adding to 15113432324321 its reverse (12342323431151), we get a palindrome (27455755755472).

The spelling of 15113432324321 in words is "fifteen trillion, one hundred thirteen billion, four hundred thirty-two million, three hundred twenty-four thousand, three hundred twenty-one".