1123022231 has 2 divisors, whose sum is σ = 1123022232. Its totient is φ = 1123022230.

The previous prime is 1123022207. The next prime is 1123022281. The reversal of 1123022231 is 1322203211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123022231 - 2⁶ = 1123022167 is a prime.

It is a super-2 number, since 2×1123022231² = 2522357862640434722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123022281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561511115 + 561511116.

It is an arithmetic number, because the mean of its divisors is an integer number (561511116).

Almost surely, 2^1123022231 is an apocalyptic number.

1123022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123022231 is an equidigital number, since it uses as much as digits as its factorization.

1123022231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1123022231 is about 33511.5238537432. The cubic root of 1123022231 is about 1039.4320836084.

Adding to 1123022231 its reverse (1322203211), we get a palindrome (2445225442).

The spelling of 1123022231 in words is "one billion, one hundred twenty-three million, twenty-two thousand, two hundred thirty-one".