1130120231 has 2 divisors, whose sum is σ = 1130120232. Its totient is φ = 1130120230.

The previous prime is 1130120213. The next prime is 1130120287. The reversal of 1130120231 is 1320210311.

Together with previous prime (1130120213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1130120231 - 2¹⁸ = 1129858087 is a prime.

It is a super-2 number, since 2×1130120231² = 2554343473030986722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130125231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565060115 + 565060116.

It is an arithmetic number, because the mean of its divisors is an integer number (565060116).

Almost surely, 2^1130120231 is an apocalyptic number.

1130120231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130120231 is an equidigital number, since it uses as much as digits as its factorization.

1130120231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1130120231 is about 33617.2609086463. The cubic root of 1130120231 is about 1041.6173770754.

Adding to 1130120231 its reverse (1320210311), we get a palindrome (2450330542).

The spelling of 1130120231 in words is "one billion, one hundred thirty million, one hundred twenty thousand, two hundred thirty-one".