13213123020404 has 24 divisors (see below), whose sum is σ = 24487466834880. Its totient is φ = 6216841293696.

The previous prime is 13213123020397. The next prime is 13213123020481. The reversal of 13213123020404 is 40402032131231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16783472 + ... + 17553095.

It is an arithmetic number, because the mean of its divisors is an integer number (1020311118120).

Almost surely, 2^{13213123020404} is an apocalyptic number.

It is an amenable number.

13213123020404 is a deficient number, since it is larger than the sum of its proper divisors (11274343814476).

13213123020404 is a wasteful number, since it uses less digits than its factorization.

13213123020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34342247 (or 34342245 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13213123020404 its reverse (40402032131231), we get a palindrome (53615155151635).

The spelling of 13213123020404 in words is "thirteen trillion, two hundred thirteen billion, one hundred twenty-three million, twenty thousand, four hundred four".