111110230121 has 4 divisors (see below), whose sum is σ = 121211160144. Its totient is φ = 101009300100.

The previous prime is 111110230109. The next prime is 111110230123. The reversal of 111110230121 is 121032011111.

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-111110230121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111110230096 and 111110230105.

It is not an unprimeable number, because it can be changed into a prime (111110230123) 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, 5050464995 + ... + 5050465016.

It is an arithmetic number, because the mean of its divisors is an integer number (30302790036).

Almost surely, 2^111110230121 is an apocalyptic number.

111110230121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110230121 is a deficient number, since it is larger than the sum of its proper divisors (10100930023).

111110230121 is a wasteful number, since it uses less digits than its factorization.

111110230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100930022.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111110230121 its reverse (121032011111), we get a palindrome (232142241232).

The spelling of 111110230121 in words is "one hundred eleven billion, one hundred ten million, two hundred thirty thousand, one hundred twenty-one".