13032313121 has 4 divisors (see below), whose sum is σ = 13048873392. Its totient is φ = 13015752852.

The previous prime is 13032313081. The next prime is 13032313127. The reversal of 13032313121 is 12131323031.

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: 12131323031 = 31 ⋅391333001.

It is a cyclic number.

It is not a de Polignac number, because 13032313121 - 2¹⁴ = 13032296737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13032313093 and 13032313102.

It is not an unprimeable number, because it can be changed into a prime (13032313127) 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, 8278955 + ... + 8280528.

It is an arithmetic number, because the mean of its divisors is an integer number (3262218348).

Almost surely, 2^13032313121 is an apocalyptic number.

It is an amenable number.

13032313121 is a deficient number, since it is larger than the sum of its proper divisors (16560271).

13032313121 is an equidigital number, since it uses as much as digits as its factorization.

13032313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560270.

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

Adding to 13032313121 its reverse (12131323031), we get a palindrome (25163636152).

The spelling of 13032313121 in words is "thirteen billion, thirty-two million, three hundred thirteen thousand, one hundred twenty-one".