1132331231 has 2 divisors, whose sum is σ = 1132331232. Its totient is φ = 1132331230.

The previous prime is 1132331219. The next prime is 1132331269. The reversal of 1132331231 is 1321332311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132331231 is a prime.

It is a super-2 number, since 2×1132331231² = 2564348033395950722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132331281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566165615 + 566165616.

It is an arithmetic number, because the mean of its divisors is an integer number (566165616).

Almost surely, 2^1132331231 is an apocalyptic number.

1132331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132331231 is an equidigital number, since it uses as much as digits as its factorization.

1132331231 is an evil number, because the sum of its binary digits is even.

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

The square root of 1132331231 is about 33650.1297322908. The cubic root of 1132331231 is about 1042.2962180494.

Adding to 1132331231 its reverse (1321332311), we get a palindrome (2453663542).

The spelling of 1132331231 in words is "one billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred thirty-one".