11199123 has 36 divisors (see below), whose sum is σ = 18080400. Its totient is φ = 6671808.

The previous prime is 11199121. The next prime is 11199143. The reversal of 11199123 is 32199111.

11199123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11199123 - 2¹ = 11199121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11199121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56178 + ... + 56376.

Almost surely, 2^11199123 is an apocalyptic number.

11199123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11199123 is a deficient number, since it is larger than the sum of its proper divisors (6881277).

11199123 is a wasteful number, since it uses less digits than its factorization.

11199123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 252 counting only the distinct ones).

The product of its digits is 486, while the sum is 27.

The square root of 11199123 is about 3346.5090766349. The cubic root of 11199123 is about 223.7319484412.

The spelling of 11199123 in words is "eleven million, one hundred ninety-nine thousand, one hundred twenty-three".