111803993 has 8 divisors (see below), whose sum is σ = 127885440. Its totient is φ = 95749920.

The previous prime is 111803969. The next prime is 111804029. The reversal of 111803993 is 399308111.

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

It is not a de Polignac number, because 111803993 - 2¹⁶ = 111738457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111803933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2828 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (15985680).

Almost surely, 2^111803993 is an apocalyptic number.

It is an amenable number.

111803993 is a deficient number, since it is larger than the sum of its proper divisors (16081447).

111803993 is a wasteful number, since it uses less digits than its factorization.

111803993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13687.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 111803993 is about 10573.7407288055. The cubic root of 111803993 is about 481.7470953337.

The spelling of 111803993 in words is "one hundred eleven million, eight hundred three thousand, nine hundred ninety-three".