120121303121 has 24 divisors (see below), whose sum is σ = 124498466400. Its totient is φ = 115888907520.

The previous prime is 120121303087. The next prime is 120121303163. The reversal of 120121303121 is 121303121021.

It is not a de Polignac number, because 120121303121 - 2¹⁴ = 120121286737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120121303121.

It is not an unprimeable number, because it can be changed into a prime (120121303171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70700330 + ... + 70702028.

It is an arithmetic number, because the mean of its divisors is an integer number (5187436100).

Almost surely, 2^120121303121 is an apocalyptic number.

It is an amenable number.

120121303121 is a deficient number, since it is larger than the sum of its proper divisors (4377163279).

120121303121 is a wasteful number, since it uses less digits than its factorization.

120121303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120121303121 its reverse (121303121021), we get a palindrome (241424424142).

The spelling of 120121303121 in words is "one hundred twenty billion, one hundred twenty-one million, three hundred three thousand, one hundred twenty-one".