11308231 has 8 divisors (see below), whose sum is σ = 12762000. Its totient is φ = 9925440.

The previous prime is 11308229. The next prime is 11308237. The reversal of 11308231 is 13280311.

11308231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11308231 - 2¹ = 11308229 is a prime.

It is a super-2 number, since 2×11308231² = 255752176698722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11308199 and 11308208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11308237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17406 + ... + 18043.

It is an arithmetic number, because the mean of its divisors is an integer number (1595250).

Almost surely, 2^11308231 is an apocalyptic number.

11308231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11308231 is a deficient number, since it is larger than the sum of its proper divisors (1453769).

11308231 is a wasteful number, since it uses less digits than its factorization.

11308231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35489.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11308231 is about 3362.7713273430. The cubic root of 11308231 is about 224.4561746984.

Adding to 11308231 its reverse (13280311), we get a palindrome (24588542).

The spelling of 11308231 in words is "eleven million, three hundred eight thousand, two hundred thirty-one".