11285031 has 16 divisors (see below), whose sum is σ = 16387200. Its totient is φ = 6880608.

The previous prime is 11285017. The next prime is 11285063. The reversal of 11285031 is 13058211.

It is not a de Polignac number, because 11285031 - 2⁶ = 11284967 is a prime.

It is a super-2 number, since 2×11285031² = 254703849341922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11284989 and 11285007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761 + ... + 5066.

It is an arithmetic number, because the mean of its divisors is an integer number (1024200).

Almost surely, 2^11285031 is an apocalyptic number.

11285031 is a deficient number, since it is larger than the sum of its proper divisors (5102169).

11285031 is a wasteful number, since it uses less digits than its factorization.

11285031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 11285031 is about 3359.3200204803. The cubic root of 11285031 is about 224.3025712898.

The spelling of 11285031 in words is "eleven million, two hundred eighty-five thousand, thirty-one".