1313031299 has 4 divisors (see below), whose sum is σ = 1313163360. Its totient is φ = 1312899240.

The previous prime is 1313031287. The next prime is 1313031367. The reversal of 1313031299 is 9921303131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9921303131 = 19 ⋅522173849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313031299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313031899) 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, 49784 + ... + 71445.

It is an arithmetic number, because the mean of its divisors is an integer number (328290840).

Almost surely, 2^1313031299 is an apocalyptic number.

1313031299 is a deficient number, since it is larger than the sum of its proper divisors (132061).

1313031299 is a wasteful number, since it uses less digits than its factorization.

1313031299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132060.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 1313031299 is about 36235.7737463960. The cubic root of 1313031299 is about 1095.0275005430.

The spelling of 1313031299 in words is "one billion, three hundred thirteen million, thirty-one thousand, two hundred ninety-nine".