11303231 has 4 divisors (see below), whose sum is σ = 11310000. Its totient is φ = 11296464.

The previous prime is 11303221. The next prime is 11303261. The reversal of 11303231 is 13230311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13230311 = 109 ⋅121379.

It is a cyclic number.

It is not a de Polignac number, because 11303231 - 2¹⁸ = 11041087 is a prime.

It is a super-2 number, since 2×11303231² = 255526062078722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11303221) 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, 1115 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (2827500).

Almost surely, 2^11303231 is an apocalyptic number.

11303231 is a deficient number, since it is larger than the sum of its proper divisors (6769).

11303231 is an equidigital number, since it uses as much as digits as its factorization.

11303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6768.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 11303231 is about 3362.0278107119. The cubic root of 11303231 is about 224.4230882878.

Adding to 11303231 its reverse (13230311), we get a palindrome (24533542).

The spelling of 11303231 in words is "eleven million, three hundred three thousand, two hundred thirty-one".