11916231 has 16 divisors (see below), whose sum is σ = 16659456. Its totient is φ = 7562016.

The previous prime is 11916197. The next prime is 11916241. The reversal of 11916231 is 13261911.

It is not a de Polignac number, because 11916231 - 2⁷ = 11916103 is a prime.

It is a super-2 number, since 2×11916231² = 283993122490722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11916241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25506 + ... + 25968.

It is an arithmetic number, because the mean of its divisors is an integer number (1041216).

Almost surely, 2^11916231 is an apocalyptic number.

11916231 is a deficient number, since it is larger than the sum of its proper divisors (4743225).

11916231 is a wasteful number, since it uses less digits than its factorization.

11916231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its digits is 324, while the sum is 24.

The square root of 11916231 is about 3451.9894264033. The cubic root of 11916231 is about 228.4088731303.

The spelling of 11916231 in words is "eleven million, nine hundred sixteen thousand, two hundred thirty-one".