11111051 has 8 divisors (see below), whose sum is σ = 13108224. Its totient is φ = 9216360.

The previous prime is 11111039. The next prime is 11111053. The reversal of 11111051 is 15011111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111051 - 2¹⁴ = 11094667 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25385 + ... + 25818.

It is an arithmetic number, because the mean of its divisors is an integer number (1638528).

Almost surely, 2^11111051 is an apocalyptic number.

11111051 is a deficient number, since it is larger than the sum of its proper divisors (1997173).

11111051 is an equidigital number, since it uses as much as digits as its factorization.

11111051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51241.

The product of its (nonzero) digits is 5, while the sum is 11.

The square root of 11111051 is about 3333.3243166545. The cubic root of 11111051 is about 223.1439142897.

Adding to 11111051 its reverse (15011111), we get a palindrome (26122162).

The spelling of 11111051 in words is "eleven million, one hundred eleven thousand, fifty-one".