1313285203 has 4 divisors (see below), whose sum is σ = 1321982608. Its totient is φ = 1304587800.

The previous prime is 1313285191. The next prime is 1313285219. The reversal of 1313285203 is 3025823131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313285203 - 2¹³ = 1313277011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313285243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4348476 + ... + 4348777.

It is an arithmetic number, because the mean of its divisors is an integer number (330495652).

Almost surely, 2^1313285203 is an apocalyptic number.

1313285203 is a deficient number, since it is larger than the sum of its proper divisors (8697405).

1313285203 is an equidigital number, since it uses as much as digits as its factorization.

1313285203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697404.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1313285203 is about 36239.2770761228. The cubic root of 1313285203 is about 1095.0980786887.

The spelling of 1313285203 in words is "one billion, three hundred thirteen million, two hundred eighty-five thousand, two hundred three".