1311433013 has 8 divisors (see below), whose sum is σ = 1433573856. Its totient is φ = 1189778800.

The previous prime is 1311433003. The next prime is 1311433027. The reversal of 1311433013 is 3103341131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311433013 - 2⁶ = 1311432949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311433003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116006 + ... + 126807.

It is an arithmetic number, because the mean of its divisors is an integer number (179196732).

Almost surely, 2^1311433013 is an apocalyptic number.

It is an amenable number.

1311433013 is a deficient number, since it is larger than the sum of its proper divisors (122140843).

1311433013 is a wasteful number, since it uses less digits than its factorization.

1311433013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243315.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1311433013 is about 36213.7130518261. The cubic root of 1311433013 is about 1094.5830131101.

Adding to 1311433013 its reverse (3103341131), we get a palindrome (4414774144).

The spelling of 1311433013 in words is "one billion, three hundred eleven million, four hundred thirty-three thousand, thirteen".