111120011100121 has 4 divisors (see below), whose sum is σ = 111120462835200. Its totient is φ = 111119559365044.

The previous prime is 111120011100083. The next prime is 111120011100191. The reversal of 111120011100121 is 121001110021111.

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-111120011100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120011100191) 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, 225498361 + ... + 225990598.

It is an arithmetic number, because the mean of its divisors is an integer number (27780115708800).

Almost surely, 2^{111120011100121} is an apocalyptic number.

It is an amenable number.

111120011100121 is a deficient number, since it is larger than the sum of its proper divisors (451735079).

111120011100121 is an equidigital number, since it uses as much as digits as its factorization.

111120011100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451735078.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111120011100121 its reverse (121001110021111), we get a palindrome (232121121121232).

The spelling of 111120011100121 in words is "one hundred eleven trillion, one hundred twenty billion, eleven million, one hundred thousand, one hundred twenty-one".