1232332391 has 2 divisors, whose sum is σ = 1232332392. Its totient is φ = 1232332390.

The previous prime is 1232332373. The next prime is 1232332393. The reversal of 1232332391 is 1932332321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232332391 is a prime.

Together with 1232332393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232332393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616166195 + 616166196.

It is an arithmetic number, because the mean of its divisors is an integer number (616166196).

Almost surely, 2^1232332391 is an apocalyptic number.

1232332391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232332391 is an equidigital number, since it uses as much as digits as its factorization.

1232332391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 1232332391 is about 35104.5921639890. The cubic root of 1232332391 is about 1072.1180832531.

The spelling of 1232332391 in words is "one billion, two hundred thirty-two million, three hundred thirty-two thousand, three hundred ninety-one".