13323121213 has 4 divisors (see below), whose sum is σ = 13336044768. Its totient is φ = 13310197660.

The previous prime is 13323121181. The next prime is 13323121237. The reversal of 13323121213 is 31212132331.

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: 31212132331 = 797 ⋅39162023.

It is a cyclic number.

It is not a de Polignac number, because 13323121213 - 2⁵ = 13323121181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323121313) 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, 6460231 + ... + 6462292.

It is an arithmetic number, because the mean of its divisors is an integer number (3334011192).

Almost surely, 2^13323121213 is an apocalyptic number.

It is an amenable number.

13323121213 is a deficient number, since it is larger than the sum of its proper divisors (12923555).

13323121213 is a wasteful number, since it uses less digits than its factorization.

13323121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923554.

The product of its digits is 648, while the sum is 22.

Adding to 13323121213 its reverse (31212132331), we get a palindrome (44535253544).

The spelling of 13323121213 in words is "thirteen billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred thirteen".