13133321121 has 4 divisors (see below), whose sum is σ = 17511094832. Its totient is φ = 8755547412.

The previous prime is 13133321059. The next prime is 13133321161. The reversal of 13133321121 is 12112333131.

It is a happy number.

13133321121 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.

It is not a de Polignac number, because 13133321121 - 2⁹ = 13133320609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13133321161) 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, 2188886851 + ... + 2188886856.

It is an arithmetic number, because the mean of its divisors is an integer number (4377773708).

Almost surely, 2^13133321121 is an apocalyptic number.

It is an amenable number.

13133321121 is a deficient number, since it is larger than the sum of its proper divisors (4377773711).

13133321121 is an equidigital number, since it uses as much as digits as its factorization.

13133321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377773710.

The product of its digits is 324, while the sum is 21.

Adding to 13133321121 its reverse (12112333131), we get a palindrome (25245654252).

The spelling of 13133321121 in words is "thirteen billion, one hundred thirty-three million, three hundred twenty-one thousand, one hundred twenty-one".