11001091919 has 2 divisors, whose sum is σ = 11001091920. Its totient is φ = 11001091918.

The previous prime is 11001091891. The next prime is 11001091949. The reversal of 11001091919 is 91919010011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001091919 - 2²⁰ = 11000043343 is a prime.

It is a super-2 number, since 2×11001091919² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001091949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500545959 + 5500545960.

It is an arithmetic number, because the mean of its divisors is an integer number (5500545960).

Almost surely, 2^11001091919 is an apocalyptic number.

11001091919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001091919 is an equidigital number, since it uses as much as digits as its factorization.

11001091919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 11001091919 in words is "eleven billion, one million, ninety-one thousand, nine hundred nineteen".