10999999919 has 2 divisors, whose sum is σ = 10999999920. Its totient is φ = 10999999918.

The previous prime is 10999999903. The next prime is 10999999931. The reversal of 10999999919 is 91999999901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10999999919 - 2⁴ = 10999999903 is a prime.

It is a super-2 number, since 2×10999999919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10999999949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499999959 + 5499999960.

It is an arithmetic number, because the mean of its divisors is an integer number (5499999960).

Almost surely, 2^10999999919 is an apocalyptic number.

10999999919 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999999919 is an equidigital number, since it uses as much as digits as its factorization.

10999999919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43046721, while the sum is 74.

The spelling of 10999999919 in words is "ten billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred nineteen".