1232223931 has 2 divisors, whose sum is σ = 1232223932. Its totient is φ = 1232223930.

The previous prime is 1232223907. The next prime is 1232223947. The reversal of 1232223931 is 1393222321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232223931 is a prime.

It is a super-2 number, since 2×1232223931² = 3036751632258185522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1232223931.

It is not a weakly prime, because it can be changed into another prime (1232223431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616111965 + 616111966.

It is an arithmetic number, because the mean of its divisors is an integer number (616111966).

Almost surely, 2^1232223931 is an apocalyptic number.

1232223931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232223931 is an equidigital number, since it uses as much as digits as its factorization.

1232223931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 1232223931 is about 35103.0473178612. The cubic root of 1232223931 is about 1072.0866292559.

The spelling of 1232223931 in words is "one billion, two hundred thirty-two million, two hundred twenty-three thousand, nine hundred thirty-one".