11281016 has 16 divisors (see below), whose sum is σ = 21340800. Its totient is φ = 5590144.

The previous prime is 11281009. The next prime is 11281019. The reversal of 11281016 is 61018211.

It is a super-2 number, since 2×11281016² = 254522643984512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281019) 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, 5336 + ... + 7143.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^11281016 is an apocalyptic number.

It is an amenable number.

11281016 is a deficient number, since it is larger than the sum of its proper divisors (10059784).

11281016 is a wasteful number, since it uses less digits than its factorization.

11281016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598 (or 12594 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 11281016 is about 3358.7223761425. The cubic root of 11281016 is about 224.2759672676.

Adding to 11281016 its reverse (61018211), we get a palindrome (72299227).

The spelling of 11281016 in words is "eleven million, two hundred eighty-one thousand, sixteen".