11119999 has 8 divisors (see below), whose sum is σ = 12252240. Its totient is φ = 10008000.

The previous prime is 11119987. The next prime is 11120009. The reversal of 11119999 is 99991111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11119999 is a prime.

11119999 is a modest number, since divided by 9999 gives 1111 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11119909) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (1531530).

Almost surely, 2^11119999 is an apocalyptic number.

11119999 is a deficient number, since it is larger than the sum of its proper divisors (1132241).

11119999 is a wasteful number, since it uses less digits than its factorization.

11119999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121.

The product of its digits is 6561, while the sum is 40.

The square root of 11119999 is about 3334.6662501666. Note that the first 3 decimals coincide. The cubic root of 11119999 is about 223.2037992934.

It can be divided in two parts, 1111 and 9999, that multiplied together give a square (11108889 = 3333²).

The spelling of 11119999 in words is "eleven million, one hundred nineteen thousand, nine hundred ninety-nine".