11112106919 has 4 divisors (see below), whose sum is σ = 11128618896. Its totient is φ = 11095594944.

The previous prime is 11112106897. The next prime is 11112106949. The reversal of 11112106919 is 91960121111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112106919 is a prime.

It is a super-2 number, since 2×11112106919² (a number of 21 digits) 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 (11112106949) 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, 8254979 + ... + 8256324.

It is an arithmetic number, because the mean of its divisors is an integer number (2782154724).

Almost surely, 2^11112106919 is an apocalyptic number.

11112106919 is a deficient number, since it is larger than the sum of its proper divisors (16511977).

11112106919 is an equidigital number, since it uses as much as digits as its factorization.

11112106919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511976.

The product of its (nonzero) digits is 972, while the sum is 32.

The spelling of 11112106919 in words is "eleven billion, one hundred twelve million, one hundred six thousand, nine hundred nineteen".