11227431 has 4 divisors (see below), whose sum is σ = 14969912. Its totient is φ = 7484952.

The previous prime is 11227421. The next prime is 11227441. The reversal of 11227431 is 13472211.

11227431 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.

It is an interprime number because it is at equal distance from previous prime (11227421) and next prime (11227441).

It is not a de Polignac number, because 11227431 - 2⁶ = 11227367 is a prime.

It is a super-2 number, since 2×11227431² = 252110413719522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11227398 and 11227407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11227421) 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, 1871236 + ... + 1871241.

It is an arithmetic number, because the mean of its divisors is an integer number (3742478).

Almost surely, 2^11227431 is an apocalyptic number.

11227431 is a deficient number, since it is larger than the sum of its proper divisors (3742481).

11227431 is an equidigital number, since it uses as much as digits as its factorization.

11227431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742480.

The product of its digits is 336, while the sum is 21.

The square root of 11227431 is about 3350.7358893234. The cubic root of 11227431 is about 223.9202987602.

Adding to 11227431 its reverse (13472211), we get a palindrome (24699642).

The spelling of 11227431 in words is "eleven million, two hundred twenty-seven thousand, four hundred thirty-one".