11257111 has 16 divisors (see below), whose sum is σ = 12403584. Its totient is φ = 10174464.

The previous prime is 11257109. The next prime is 11257151. The reversal of 11257111 is 11175211.

11257111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11257111 - 2¹ = 11257109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11257151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58231 + ... + 58423.

It is an arithmetic number, because the mean of its divisors is an integer number (775224).

Almost surely, 2^11257111 is an apocalyptic number.

11257111 is a deficient number, since it is larger than the sum of its proper divisors (1146473).

11257111 is a wasteful number, since it uses less digits than its factorization.

11257111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 70, while the sum is 19.

The square root of 11257111 is about 3355.1618440844. The cubic root of 11257111 is about 224.1174381533.

The spelling of 11257111 in words is "eleven million, two hundred fifty-seven thousand, one hundred eleven".