11989099 has 2 divisors, whose sum is σ = 11989100. Its totient is φ = 11989098.

The previous prime is 11989091. The next prime is 11989121. The reversal of 11989099 is 99098911.

It is a weak prime.

It is an emirp because it is prime and its reverse (99098911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11989099 - 2³ = 11989091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11989091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5994549 + 5994550.

It is an arithmetic number, because the mean of its divisors is an integer number (5994550).

Almost surely, 2^11989099 is an apocalyptic number.

11989099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11989099 is an equidigital number, since it uses as much as digits as its factorization.

11989099 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 46.

The square root of 11989099 is about 3462.5278338231. The cubic root of 11989099 is about 228.8735023416.

The spelling of 11989099 in words is "eleven million, nine hundred eighty-nine thousand, ninety-nine".