1330231131 has 24 divisors (see below), whose sum is σ = 2008231680. Its totient is φ = 847397376.

The previous prime is 1330231129. The next prime is 1330231139. The reversal of 1330231131 is 1311320331.

It is a happy number.

It is not a de Polignac number, because 1330231131 - 2¹ = 1330231129 is a prime.

It is a super-2 number, since 2×1330231131² = 3539029723763078322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1330231139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 955 + ... + 51588.

It is an arithmetic number, because the mean of its divisors is an integer number (83676320).

Almost surely, 2^1330231131 is an apocalyptic number.

1330231131 is a deficient number, since it is larger than the sum of its proper divisors (678000549).

1330231131 is a wasteful number, since it uses less digits than its factorization.

1330231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52675 (or 52672 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1330231131 is about 36472.3337750685. Note that the first 3 decimals coincide. The cubic root of 1330231131 is about 1099.7881495602.

Adding to 1330231131 its reverse (1311320331), we get a palindrome (2641551462).

The spelling of 1330231131 in words is "one billion, three hundred thirty million, two hundred thirty-one thousand, one hundred thirty-one".