1333311313 has 4 divisors (see below), whose sum is σ = 1335508480. Its totient is φ = 1331114148.

The previous prime is 1333311299. The next prime is 1333311379. The reversal of 1333311313 is 3131133331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3131133331 = 31 ⋅101004301.

It is a cyclic number.

It is not a de Polignac number, because 1333311313 - 2⁹ = 1333310801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1333311713) 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, 1097673 + ... + 1098886.

It is an arithmetic number, because the mean of its divisors is an integer number (333877120).

Almost surely, 2^1333311313 is an apocalyptic number.

It is an amenable number.

1333311313 is a deficient number, since it is larger than the sum of its proper divisors (2197167).

1333311313 is an equidigital number, since it uses as much as digits as its factorization.

1333311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197166.

The product of its digits is 729, while the sum is 22.

The square root of 1333311313 is about 36514.5356399339. The cubic root of 1333311313 is about 1100.6363571366.

Adding to 1333311313 its reverse (3131133331), we get a palindrome (4464444644).

The spelling of 1333311313 in words is "one billion, three hundred thirty-three million, three hundred eleven thousand, three hundred thirteen".