11378111 has 4 divisors (see below), whose sum is σ = 11385000. Its totient is φ = 11371224.

The previous prime is 11378099. The next prime is 11378113. The reversal of 11378111 is 11187311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11378111 - 2⁶ = 11378047 is a prime.

It is a super-2 number, since 2×11378111² = 258922819856642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11378113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680 + ... + 4818.

It is an arithmetic number, because the mean of its divisors is an integer number (2846250).

Almost surely, 2^11378111 is an apocalyptic number.

11378111 is a deficient number, since it is larger than the sum of its proper divisors (6889).

11378111 is an equidigital number, since it uses as much as digits as its factorization.

11378111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888.

The product of its digits is 168, while the sum is 23.

The square root of 11378111 is about 3373.1455646029. The cubic root of 11378111 is about 224.9175730995.

The spelling of 11378111 in words is "eleven million, three hundred seventy-eight thousand, one hundred eleven".