13321204 has 48 divisors (see below), whose sum is σ = 26891200. Its totient is φ = 5723136.

The previous prime is 13321181. The next prime is 13321211. The reversal of 13321204 is 40212331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95767 + ... + 95905.

Almost surely, 2^13321204 is an apocalyptic number.

It is an amenable number.

13321204 is an abundant number, since it is smaller than the sum of its proper divisors (13569996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13321204 is a wasteful number, since it uses less digits than its factorization.

13321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13321204 is about 3649.8224614356. The cubic root of 13321204 is about 237.0542939102.

Adding to 13321204 its reverse (40212331), we get a palindrome (53533535).

It can be divided in two parts, 1332120 and 4, that multiplied together give a triangular number (5328480 = T₃₂₆₄).

The spelling of 13321204 in words is "thirteen million, three hundred twenty-one thousand, two hundred four".