13313213132121 has 48 divisors (see below), whose sum is σ = 22173234894720. Its totient is φ = 7539758553600.

The previous prime is 13313213132117. The next prime is 13313213132173. The reversal of 13313213132121 is 12123131231331.

13313213132121 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 321 + 313 + 2 + 1 + 21 = 666.

It is not a de Polignac number, because 13313213132121 - 2² = 13313213132117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13313213132111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137412346 + ... + 137509196.

It is an arithmetic number, because the mean of its divisors is an integer number (461942393640).

Almost surely, 2^{13313213132121} is an apocalyptic number.

It is an amenable number.

13313213132121 is a deficient number, since it is larger than the sum of its proper divisors (8860021762599).

13313213132121 is a wasteful number, since it uses less digits than its factorization.

13313213132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116286 (or 116283 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 13313213132121 its reverse (12123131231331), we get a palindrome (25436344363452).

The spelling of 13313213132121 in words is "thirteen trillion, three hundred thirteen billion, two hundred thirteen million, one hundred thirty-two thousand, one hundred twenty-one".