1121110231 has 2 divisors, whose sum is σ = 1121110232. Its totient is φ = 1121110230.

The previous prime is 1121110171. The next prime is 1121110241. The reversal of 1121110231 is 1320111211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121110231 - 2⁷ = 1121110103 is a prime.

It is a super-2 number, since 2×1121110231² = 2513776300105746722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121110241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560555115 + 560555116.

It is an arithmetic number, because the mean of its divisors is an integer number (560555116).

Almost surely, 2^1121110231 is an apocalyptic number.

1121110231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121110231 is an equidigital number, since it uses as much as digits as its factorization.

1121110231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1121110231 is about 33482.9842009341. The cubic root of 1121110231 is about 1038.8418539480.

Adding to 1121110231 its reverse (1320111211), we get a palindrome (2441221442).

The spelling of 1121110231 in words is "one billion, one hundred twenty-one million, one hundred ten thousand, two hundred thirty-one".