11285831 has 2 divisors, whose sum is σ = 11285832. Its totient is φ = 11285830.

The previous prime is 11285809. The next prime is 11285837. The reversal of 11285831 is 13858211.

11285831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11285831 - 2²² = 7091527 is a prime.

It is a super-2 number, since 2×11285831² = 254739962721122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11285794 and 11285803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11285837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642915 + 5642916.

It is an arithmetic number, because the mean of its divisors is an integer number (5642916).

Almost surely, 2^11285831 is an apocalyptic number.

11285831 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285831 is an equidigital number, since it uses as much as digits as its factorization.

11285831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 11285831 is about 3359.4390900863. The cubic root of 11285831 is about 224.3078714618.

The spelling of 11285831 in words is "eleven million, two hundred eighty-five thousand, eight hundred thirty-one".