1100919899 has 2 divisors, whose sum is σ = 1100919900. Its totient is φ = 1100919898.

The previous prime is 1100919889. The next prime is 1100919917. The reversal of 1100919899 is 9989190011.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9989190011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100919899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100919829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550459949 + 550459950.

It is an arithmetic number, because the mean of its divisors is an integer number (550459950).

Almost surely, 2^1100919899 is an apocalyptic number.

1100919899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100919899 is an equidigital number, since it uses as much as digits as its factorization.

1100919899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 47.

The square root of 1100919899 is about 33180.1130046297. The cubic root of 1100919899 is about 1032.5677908693.

The spelling of 1100919899 in words is "one billion, one hundred million, nine hundred nineteen thousand, eight hundred ninety-nine".