121303302220103 has 4 divisors (see below), whose sum is σ = 121337694994320. Its totient is φ = 121268909445888.

The previous prime is 121303302220007. The next prime is 121303302220109. The reversal of 121303302220103 is 301022203303121.

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 121303302220103 - 2²⁴ = 121303285442887 is a prime.

It is a super-2 number, since 2×121303302220103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303302220109) 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, 17196381818 + ... + 17196388871.

It is an arithmetic number, because the mean of its divisors is an integer number (30334423748580).

Almost surely, 2^{121303302220103} is an apocalyptic number.

121303302220103 is a deficient number, since it is larger than the sum of its proper divisors (34392774217).

121303302220103 is an equidigital number, since it uses as much as digits as its factorization.

121303302220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34392774216.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121303302220103 its reverse (301022203303121), we get a palindrome (422325505523224).

The spelling of 121303302220103 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred two million, two hundred twenty thousand, one hundred three".