111123002113 has 4 divisors (see below), whose sum is σ = 111345694000. Its totient is φ = 110900310228.

The previous prime is 111123002093. The next prime is 111123002117. The reversal of 111123002113 is 311200321111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111123002113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111123002117) 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, 111345195 + ... + 111346192.

It is an arithmetic number, because the mean of its divisors is an integer number (27836423500).

Almost surely, 2^111123002113 is an apocalyptic number.

It is an amenable number.

111123002113 is a deficient number, since it is larger than the sum of its proper divisors (222691887).

111123002113 is an equidigital number, since it uses as much as digits as its factorization.

111123002113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222691886.

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

Adding to 111123002113 its reverse (311200321111), we get a palindrome (422323323224).

The spelling of 111123002113 in words is "one hundred eleven billion, one hundred twenty-three million, two thousand, one hundred thirteen".