121120012021103 has 4 divisors (see below), whose sum is σ = 121120043484720. Its totient is φ = 121119980557488.

The previous prime is 121120012021087. The next prime is 121120012021153. The reversal of 121120012021103 is 301120210021121.

It is a happy number.

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 121120012021103 - 2⁴ = 121120012021087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120012021153) 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, 8996243 + ... + 17976996.

It is an arithmetic number, because the mean of its divisors is an integer number (30280010871180).

Almost surely, 2^{121120012021103} is an apocalyptic number.

121120012021103 is a deficient number, since it is larger than the sum of its proper divisors (31463617).

121120012021103 is an equidigital number, since it uses as much as digits as its factorization.

121120012021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31463616.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121120012021103 its reverse (301120210021121), we get a palindrome (422240222042224).

The spelling of 121120012021103 in words is "one hundred twenty-one trillion, one hundred twenty billion, twelve million, twenty-one thousand, one hundred three".