1313204402 has 8 divisors (see below), whose sum is σ = 1971258012. Its totient is φ = 656118400.

The previous prime is 1313204377. The next prime is 1313204411. The reversal of 1313204402 is 2044023131.

It can be written as a sum of positive squares in 2 ways, for example, as 1106161081 + 207043321 = 33259^2 + 14389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238499 + ... + 243942.

Almost surely, 2^1313204402 is an apocalyptic number.

1313204402 is a deficient number, since it is larger than the sum of its proper divisors (658053610).

1313204402 is a wasteful number, since it uses less digits than its factorization.

1313204402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483804.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1313204402 is about 36238.1622326519. The cubic root of 1313204402 is about 1095.0756192782.

Adding to 1313204402 its reverse (2044023131), we get a palindrome (3357227533).

The spelling of 1313204402 in words is "one billion, three hundred thirteen million, two hundred four thousand, four hundred two".