11199031899 has 16 divisors (see below), whose sum is σ = 16292325504. Its totient is φ = 6786115200.

The previous prime is 11199031897. The next prime is 11199031903. The reversal of 11199031899 is 99813099111.

It is not a de Polignac number, because 11199031899 - 2¹ = 11199031897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11199031897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187692 + ... + 240054.

It is an arithmetic number, because the mean of its divisors is an integer number (1018270344).

Almost surely, 2^11199031899 is an apocalyptic number.

11199031899 is a deficient number, since it is larger than the sum of its proper divisors (5093293605).

11199031899 is a wasteful number, since it uses less digits than its factorization.

11199031899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58858.

The product of its (nonzero) digits is 157464, while the sum is 51.

The spelling of 11199031899 in words is "eleven billion, one hundred ninety-nine million, thirty-one thousand, eight hundred ninety-nine".