111200102019 has 16 divisors (see below), whose sum is σ = 164900720640. Its totient is φ = 74061478440.

The previous prime is 111200102011. The next prime is 111200102021. The reversal of 111200102019 is 910201002111.

It is a happy number.

It is not a de Polignac number, because 111200102019 - 2³ = 111200102011 is a prime.

It is a super-2 number, since 2×111200102019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111200101992 and 111200102010.

It is not an unprimeable number, because it can be changed into a prime (111200102011) 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 15 ways as a sum of consecutive naturals, for example, 1969507 + ... + 2025180.

It is an arithmetic number, because the mean of its divisors is an integer number (10306295040).

Almost surely, 2^111200102019 is an apocalyptic number.

111200102019 is a deficient number, since it is larger than the sum of its proper divisors (53700618621).

111200102019 is a wasteful number, since it uses less digits than its factorization.

111200102019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995727 (or 3995721 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 111200102019 in words is "one hundred eleven billion, two hundred million, one hundred two thousand, nineteen".