11111057 has 4 divisors (see below), whose sum is σ = 11299440. Its totient is φ = 10922676.

The previous prime is 11111053. The next prime is 11111069. The reversal of 11111057 is 75011111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11111057 - 2² = 11111053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111053) 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, 94103 + ... + 94220.

It is an arithmetic number, because the mean of its divisors is an integer number (2824860).

Almost surely, 2^11111057 is an apocalyptic number.

It is an amenable number.

11111057 is a deficient number, since it is larger than the sum of its proper divisors (188383).

11111057 is an equidigital number, since it uses as much as digits as its factorization.

11111057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188382.

The product of its (nonzero) digits is 35, while the sum is 17.

The square root of 11111057 is about 3333.3252166568. The cubic root of 11111057 is about 223.1439544559.

Adding to 11111057 its reverse (75011111), we get a palindrome (86122168).

The spelling of 11111057 in words is "eleven million, one hundred eleven thousand, fifty-seven".