11302231 has 4 divisors (see below), whose sum is σ = 11542752. Its totient is φ = 11061712.

The previous prime is 11302219. The next prime is 11302237. The reversal of 11302231 is 13220311.

11302231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220311 = 13 ⋅1016947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11302231 is a prime.

It is a super-2 number, since 2×11302231² = 255480851154722, 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 (11302237) 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, 120190 + ... + 120283.

It is an arithmetic number, because the mean of its divisors is an integer number (2885688).

Almost surely, 2^11302231 is an apocalyptic number.

11302231 is a deficient number, since it is larger than the sum of its proper divisors (240521).

11302231 is an equidigital number, since it uses as much as digits as its factorization.

11302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240520.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11302231 is about 3361.8790876532. The cubic root of 11302231 is about 224.4164698348.

Adding to 11302231 its reverse (13220311), we get a palindrome (24522542).

The spelling of 11302231 in words is "eleven million, three hundred two thousand, two hundred thirty-one".