1320333131 has 8 divisors (see below), whose sum is σ = 1427433504. Its totient is φ = 1214023680.

The previous prime is 1320333037. The next prime is 1320333137. The reversal of 1320333131 is 1313330231.

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 1320333131 - 2²⁶ = 1253224267 is a prime.

It is a super-2 number, since 2×1320333131² = 3486559153632526322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320333137) 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, 194255 + ... + 200936.

It is an arithmetic number, because the mean of its divisors is an integer number (178429188).

Almost surely, 2^1320333131 is an apocalyptic number.

1320333131 is a deficient number, since it is larger than the sum of its proper divisors (107100373).

1320333131 is a wasteful number, since it uses less digits than its factorization.

1320333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395461.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1320333131 is about 36336.3885244530. The cubic root of 1320333131 is about 1097.0535834868.

Adding to 1320333131 its reverse (1313330231), we get a palindrome (2633663362).

The spelling of 1320333131 in words is "one billion, three hundred twenty million, three hundred thirty-three thousand, one hundred thirty-one".