11285431 has 2 divisors, whose sum is σ = 11285432. Its totient is φ = 11285430.

The previous prime is 11285429. The next prime is 11285441. The reversal of 11285431 is 13458211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11285431 - 2¹ = 11285429 is a prime.

It is a super-2 number, since 2×11285431² = 254721905711522, which contains 22 as substring.

Together with 11285429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11285396 and 11285405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11285441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642715 + 5642716.

It is an arithmetic number, because the mean of its divisors is an integer number (5642716).

Almost surely, 2^11285431 is an apocalyptic number.

11285431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285431 is an equidigital number, since it uses as much as digits as its factorization.

11285431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 11285431 is about 3359.3795558109. The cubic root of 11285431 is about 224.3052214071.

The spelling of 11285431 in words is "eleven million, two hundred eighty-five thousand, four hundred thirty-one".