11199101 has 2 divisors, whose sum is σ = 11199102. Its totient is φ = 11199100.

The previous prime is 11199079. The next prime is 11199103. The reversal of 11199101 is 10199111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 302500 = 3301^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 11199101 - 2²² = 7004797 is a prime.

Together with 11199103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599550 + 5599551.

It is an arithmetic number, because the mean of its divisors is an integer number (5599551).

Almost surely, 2^11199101 is an apocalyptic number.

It is an amenable number.

11199101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199101 is an equidigital number, since it uses as much as digits as its factorization.

11199101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 11199101 is about 3346.5057896259. The cubic root of 11199101 is about 223.7318019385.

The spelling of 11199101 in words is "eleven million, one hundred ninety-nine thousand, one hundred one".