1123230331 has 2 divisors, whose sum is σ = 1123230332. Its totient is φ = 1123230330.

The previous prime is 1123230313. The next prime is 1123230343. The reversal of 1123230331 is 1330323211.

Together with previous prime (1123230313) 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 1123230331 - 2⁷ = 1123230203 is a prime.

It is a super-2 number, since 2×1123230331² = 2523292752956739122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123230299 and 1123230308.

It is not a weakly prime, because it can be changed into another prime (1123230371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561615165 + 561615166.

It is an arithmetic number, because the mean of its divisors is an integer number (561615166).

Almost surely, 2^1123230331 is an apocalyptic number.

1123230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123230331 is an equidigital number, since it uses as much as digits as its factorization.

1123230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1123230331 is about 33514.6286119957. The cubic root of 1123230331 is about 1039.4962831263.

Adding to 1123230331 its reverse (1330323211), we get a palindrome (2453553542).

The spelling of 1123230331 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, three hundred thirty-one".