11839231 has 2 divisors, whose sum is σ = 11839232. Its totient is φ = 11839230.

The previous prime is 11839207. The next prime is 11839237. The reversal of 11839231 is 13293811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11839231 - 2⁷ = 11839103 is a prime.

It is a super-2 number, since 2×11839231² = 280334781342722, 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 11839231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11839237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919615 + 5919616.

It is an arithmetic number, because the mean of its divisors is an integer number (5919616).

Almost surely, 2^11839231 is an apocalyptic number.

11839231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11839231 is an equidigital number, since it uses as much as digits as its factorization.

11839231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 11839231 is about 3440.8183619598. The cubic root of 11839231 is about 227.9158340721.

The spelling of 11839231 in words is "eleven million, eight hundred thirty-nine thousand, two hundred thirty-one".