1320513204 has 24 divisors (see below), whose sum is σ = 3100105120. Its totient is φ = 437469984.

The previous prime is 1320513149. The next prime is 1320513211. The reversal of 1320513204 is 4023150231.

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, 335599 + ... + 339510.

Almost surely, 2^1320513204 is an apocalyptic number.

It is an amenable number.

1320513204 is an abundant number, since it is smaller than the sum of its proper divisors (1779591916).

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

1320513204 is a wasteful number, since it uses less digits than its factorization.

1320513204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675279 (or 675277 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1320513204 is about 36338.8663004227. The cubic root of 1320513204 is about 1097.1034549283.

Adding to 1320513204 its reverse (4023150231), we get a palindrome (5343663435).

The spelling of 1320513204 in words is "one billion, three hundred twenty million, five hundred thirteen thousand, two hundred four".