13113032321 has 4 divisors (see below), whose sum is σ = 13216284672. Its totient is φ = 13009779972.

The previous prime is 13113032311. The next prime is 13113032347. The reversal of 13113032321 is 12323031131.

13113032321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12323031131 = 33329 ⋅369739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113032321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113032293 and 13113032302.

It is not an unprimeable number, because it can be changed into a prime (13113032311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51625985 + ... + 51626238.

It is an arithmetic number, because the mean of its divisors is an integer number (3304071168).

Almost surely, 2^13113032321 is an apocalyptic number.

It is an amenable number.

13113032321 is a deficient number, since it is larger than the sum of its proper divisors (103252351).

13113032321 is a wasteful number, since it uses less digits than its factorization.

13113032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103252350.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13113032321 its reverse (12323031131), we get a palindrome (25436063452).

The spelling of 13113032321 in words is "thirteen billion, one hundred thirteen million, thirty-two thousand, three hundred twenty-one".