11200997 has 2 divisors, whose sum is σ = 11200998. Its totient is φ = 11200996.

The previous prime is 11200991. The next prime is 11200999. The reversal of 11200997 is 79900211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8375236 + 2825761 = 2894^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200997 - 2¹⁰ = 11199973 is a prime.

Together with 11200999, 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 (11200991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600498 + 5600499.

It is an arithmetic number, because the mean of its divisors is an integer number (5600499).

Almost surely, 2^11200997 is an apocalyptic number.

It is an amenable number.

11200997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200997 is an equidigital number, since it uses as much as digits as its factorization.

11200997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 11200997 is about 3346.7890581870. The cubic root of 11200997 is about 223.7444271055.

The spelling of 11200997 in words is "eleven million, two hundred thousand, nine hundred ninety-seven".