11418231 has 16 divisors (see below), whose sum is σ = 16709760. Its totient is φ = 6877920.

The previous prime is 11418229. The next prime is 11418247. The reversal of 11418231 is 13281411.

It is a happy number.

It is not a de Polignac number, because 11418231 - 2¹ = 11418229 is a prime.

It is a super-2 number, since 2×11418231² = 260751998338722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11418198 and 11418207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11418331) 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, 4941 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (1044360).

Almost surely, 2^11418231 is an apocalyptic number.

11418231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11418231 is a deficient number, since it is larger than the sum of its proper divisors (5291529).

11418231 is a wasteful number, since it uses less digits than its factorization.

11418231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its digits is 192, while the sum is 21.

The square root of 11418231 is about 3379.0873028083. The cubic root of 11418231 is about 225.1816212561.

Adding to 11418231 its reverse (13281411), we get a palindrome (24699642).

The spelling of 11418231 in words is "eleven million, four hundred eighteen thousand, two hundred thirty-one".