11551113 has 24 divisors (see below), whose sum is σ = 19908960. Its totient is φ = 6599880.

The previous prime is 11551103. The next prime is 11551117. The reversal of 11551113 is 31115511.

11551113 is a `hidden beast` number, since 1 + 1 + 551 + 113 = 666.

It is not a de Polignac number, because 11551113 - 2⁵ = 11551081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11551117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3043 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (829540).

Almost surely, 2^11551113 is an apocalyptic number.

It is an amenable number.

11551113 is a deficient number, since it is larger than the sum of its proper divisors (8357847).

11551113 is an equidigital number, since it uses as much as digits as its factorization.

11551113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754 (or 8741 counting only the distinct ones).

The product of its digits is 75, while the sum is 18.

The square root of 11551113 is about 3398.6928369595. The cubic root of 11551113 is about 226.0517867593.

Adding to 11551113 its reverse (31115511), we get a palindrome (42666624).

It can be divided in two parts, 11551 and 113, that added together give a square (11664 = 108²).

The spelling of 11551113 in words is "eleven million, five hundred fifty-one thousand, one hundred thirteen".