111113120203 has 4 divisors (see below), whose sum is σ = 112213250208. Its totient is φ = 110012990200.

The previous prime is 111113120161. The next prime is 111113120219. The reversal of 111113120203 is 302021311111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111113120203 is a prime.

It is a super-2 number, since 2×111113120203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111113120243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550064851 + ... + 550065052.

It is an arithmetic number, because the mean of its divisors is an integer number (28053312552).

Almost surely, 2^111113120203 is an apocalyptic number.

111113120203 is a deficient number, since it is larger than the sum of its proper divisors (1100130005).

111113120203 is a wasteful number, since it uses less digits than its factorization.

111113120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100130004.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111113120203 its reverse (302021311111), we get a palindrome (413134431314).

The spelling of 111113120203 in words is "one hundred eleven billion, one hundred thirteen million, one hundred twenty thousand, two hundred three".