121303301012120 has 16 divisors (see below), whose sum is σ = 272932427277360. Its totient is φ = 48521320404832.

The previous prime is 121303301012081. The next prime is 121303301012141. The reversal of 121303301012120 is 21210103303121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121303301012092 and 121303301012101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516291262612 + ... + 1516291262691.

It is an arithmetic number, because the mean of its divisors is an integer number (17058276704835).

Almost surely, 2^{121303301012120} is an apocalyptic number.

121303301012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121303301012120 is an abundant number, since it is smaller than the sum of its proper divisors (151629126265240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121303301012120 is a wasteful number, since it uses less digits than its factorization.

121303301012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032582525314 (or 3032582525310 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121303301012120 its reverse (21210103303121), we get a palindrome (142513404315241).

The spelling of 121303301012120 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred one million, twelve thousand, one hundred twenty".