121303241120 has 24 divisors (see below), whose sum is σ = 286578907524. Its totient is φ = 48521296384.

The previous prime is 121303241093. The next prime is 121303241131. The reversal of 121303241120 is 21142303121.

It can be written as a sum of positive squares in 2 ways, for example, as 109473633424 + 11829607696 = 330868^2 + 108764^2 .

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 = 121303241092 and 121303241101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379072469 + ... + 379072788.

Almost surely, 2^121303241120 is an apocalyptic number.

121303241120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121303241120 is an abundant number, since it is smaller than the sum of its proper divisors (165275666404).

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

121303241120 is an equidigital number, since it uses as much as digits as its factorization.

121303241120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758145272 (or 758145264 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121303241120 its reverse (21142303121), we get a palindrome (142445544241).

The spelling of 121303241120 in words is "one hundred twenty-one billion, three hundred three million, two hundred forty-one thousand, one hundred twenty".