11303431 has 4 divisors (see below), whose sum is σ = 11362192. Its totient is φ = 11244672.

The previous prime is 11303401. The next prime is 11303441. The reversal of 11303431 is 13430311.

11303431 is digitally balanced in base 2, 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: 13430311 = 199 ⋅67489.

It is a cyclic number.

It is not a de Polignac number, because 11303431 - 2⁹ = 11302919 is a prime.

It is a super-2 number, since 2×11303431² = 255535104743522, 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 (11303401) 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, 29091 + ... + 29476.

It is an arithmetic number, because the mean of its divisors is an integer number (2840548).

Almost surely, 2^11303431 is an apocalyptic number.

11303431 is a deficient number, since it is larger than the sum of its proper divisors (58761).

11303431 is an equidigital number, since it uses as much as digits as its factorization.

11303431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58760.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 11303431 is about 3362.0575545341. The cubic root of 11303431 is about 224.4244119315.

Adding to 11303431 its reverse (13430311), we get a palindrome (24733742).

The spelling of 11303431 in words is "eleven million, three hundred three thousand, four hundred thirty-one".