11199124 has 24 divisors (see below), whose sum is σ = 20903400. Its totient is φ = 5231616.

The previous prime is 11199121. The next prime is 11199143. The reversal of 11199124 is 42199111.

It can be written as a sum of positive squares in 4 ways, for example, as 4334724 + 6864400 = 2082^2 + 2620^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11199092 and 11199101.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10152 + ... + 11200.

It is an arithmetic number, because the mean of its divisors is an integer number (870975).

Almost surely, 2^11199124 is an apocalyptic number.

It is an amenable number.

11199124 is a deficient number, since it is larger than the sum of its proper divisors (9704276).

11199124 is a wasteful number, since it uses less digits than its factorization.

11199124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1225 counting only the distinct ones).

The product of its digits is 648, while the sum is 28.

The square root of 11199124 is about 3346.5092260444. The cubic root of 11199124 is about 223.7319551004.

It can be divided in two parts, 111 and 99124, that added together give a triangular number (99235 = T₄₄₅).

The spelling of 11199124 in words is "eleven million, one hundred ninety-nine thousand, one hundred twenty-four".