10990199111 has 2 divisors, whose sum is σ = 10990199112. Its totient is φ = 10990199110.

The previous prime is 10990199063. The next prime is 10990199123. The reversal of 10990199111 is 11199109901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10990199111 - 2¹⁴ = 10990182727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10990199911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5495099555 + 5495099556.

It is an arithmetic number, because the mean of its divisors is an integer number (5495099556).

Almost surely, 2^10990199111 is an apocalyptic number.

10990199111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10990199111 is an equidigital number, since it uses as much as digits as its factorization.

10990199111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 10990199111 in words is "ten billion, nine hundred ninety million, one hundred ninety-nine thousand, one hundred eleven".