111002120203 has 16 divisors (see below), whose sum is σ = 120614054400. Its totient is φ = 101547515520.

The previous prime is 111002120179. The next prime is 111002120209. The reversal of 111002120203 is 302021200111.

It is a cyclic number.

It is not a de Polignac number, because 111002120203 - 2³³ = 102412185611 is a prime.

It is a super-2 number, since 2×111002120203² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111002120209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584833 + ... + 751021.

It is an arithmetic number, because the mean of its divisors is an integer number (7538378400).

Almost surely, 2^111002120203 is an apocalyptic number.

111002120203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111002120203 is a deficient number, since it is larger than the sum of its proper divisors (9611934197).

111002120203 is a wasteful number, since it uses less digits than its factorization.

111002120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166662.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 111002120203 its reverse (302021200111), we get a palindrome (413023320314).

The spelling of 111002120203 in words is "one hundred eleven billion, two million, one hundred twenty thousand, two hundred three".