121120112103 has 4 divisors (see below), whose sum is σ = 161493482808. Its totient is φ = 80746741400.

The previous prime is 121120112077. The next prime is 121120112137. The reversal of 121120112103 is 301211021121.

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

It is a cyclic number.

It is not a de Polignac number, because 121120112103 - 2⁹ = 121120111591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120112153) 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, 20186685348 + ... + 20186685353.

It is an arithmetic number, because the mean of its divisors is an integer number (40373370702).

Almost surely, 2^121120112103 is an apocalyptic number.

121120112103 is a deficient number, since it is larger than the sum of its proper divisors (40373370705).

121120112103 is an equidigital number, since it uses as much as digits as its factorization.

121120112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40373370704.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121120112103 its reverse (301211021121), we get a palindrome (422331133224).

The spelling of 121120112103 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twelve thousand, one hundred three".