1121192231 has 2 divisors, whose sum is σ = 1121192232. Its totient is φ = 1121192230.

The previous prime is 1121192227. The next prime is 1121192239. The reversal of 1121192231 is 1322911211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121192231 - 2² = 1121192227 is a prime.

It is a super-2 number, since 2×1121192231² = 2514144037709514722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121192197 and 1121192206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121192239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560596115 + 560596116.

It is an arithmetic number, because the mean of its divisors is an integer number (560596116).

Almost surely, 2^1121192231 is an apocalyptic number.

1121192231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121192231 is an equidigital number, since it uses as much as digits as its factorization.

1121192231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 23.

The square root of 1121192231 is about 33484.2086811082. The cubic root of 1121192231 is about 1038.8671809119.

The spelling of 1121192231 in words is "one billion, one hundred twenty-one million, one hundred ninety-two thousand, two hundred thirty-one".