1123033231 has 2 divisors, whose sum is σ = 1123033232. Its totient is φ = 1123033230.

The previous prime is 1123033147. The next prime is 1123033237. The reversal of 1123033231 is 1323303211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123033231 - 2²¹ = 1120936079 is a prime.

It is a super-2 number, since 2×1123033231² = 2522407275860598722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123033199 and 1123033208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123033237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561516615 + 561516616.

It is an arithmetic number, because the mean of its divisors is an integer number (561516616).

Almost surely, 2^1123033231 is an apocalyptic number.

1123033231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123033231 is an equidigital number, since it uses as much as digits as its factorization.

1123033231 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 1123033231 is about 33511.6879759883. The cubic root of 1123033231 is about 1039.4354773422.

Adding to 1123033231 its reverse (1323303211), we get a palindrome (2446336442).

The spelling of 1123033231 in words is "one billion, one hundred twenty-three million, thirty-three thousand, two hundred thirty-one".