11398231 has 4 divisors (see below), whose sum is σ = 12275032. Its totient is φ = 10521432.

The previous prime is 11398229. The next prime is 11398237. The reversal of 11398231 is 13289311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11398231 - 2¹ = 11398229 is a prime.

It is a super-2 number, since 2×11398231² = 259839339858722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11398231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11398237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438381 + ... + 438406.

It is an arithmetic number, because the mean of its divisors is an integer number (3068758).

Almost surely, 2^11398231 is an apocalyptic number.

11398231 is a deficient number, since it is larger than the sum of its proper divisors (876801).

11398231 is an equidigital number, since it uses as much as digits as its factorization.

11398231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876800.

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

The square root of 11398231 is about 3376.1266267722. The cubic root of 11398231 is about 225.0500695156.

The spelling of 11398231 in words is "eleven million, three hundred ninety-eight thousand, two hundred thirty-one".