1120331231 has 2 divisors, whose sum is σ = 1120331232. Its totient is φ = 1120331230.

The previous prime is 1120331213. The next prime is 1120331239. The reversal of 1120331231 is 1321330211.

Together with previous prime (1120331213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1120331231 - 2⁶ = 1120331167 is a prime.

It is a super-2 number, since 2×1120331231² = 2510284134307950722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120331239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560165615 + 560165616.

It is an arithmetic number, because the mean of its divisors is an integer number (560165616).

Almost surely, 2^1120331231 is an apocalyptic number.

1120331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120331231 is an equidigital number, since it uses as much as digits as its factorization.

1120331231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1120331231 is about 33471.3494051256. The cubic root of 1120331231 is about 1038.6011861733.

Adding to 1120331231 its reverse (1321330211), we get a palindrome (2441661442).

The spelling of 1120331231 in words is "one billion, one hundred twenty million, three hundred thirty-one thousand, two hundred thirty-one".