1313204421 has 16 divisors (see below), whose sum is σ = 1768536000. Its totient is φ = 866714880.

The previous prime is 1313204411. The next prime is 1313204429. The reversal of 1313204421 is 1244023131.

It is not a de Polignac number, because 1313204421 - 2⁶ = 1313204357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313204429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119830 + ... + 130328.

It is an arithmetic number, because the mean of its divisors is an integer number (110533500).

Almost surely, 2^1313204421 is an apocalyptic number.

It is an amenable number.

1313204421 is a deficient number, since it is larger than the sum of its proper divisors (455331579).

1313204421 is a wasteful number, since it uses less digits than its factorization.

1313204421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10916.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1313204421 is about 36238.1624948065. The cubic root of 1313204421 is about 1095.0756245595.

Adding to 1313204421 its reverse (1244023131), we get a palindrome (2557227552).

The spelling of 1313204421 in words is "one billion, three hundred thirteen million, two hundred four thousand, four hundred twenty-one".