121301312323120 has 40 divisors (see below), whose sum is σ = 282877592153040. Its totient is φ = 48373937230080.

The previous prime is 121301312323109. The next prime is 121301312323123. The reversal of 121301312323120 is 21323213103121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×121301312323120² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121301312323123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2290406155 + ... + 2290459114.

It is an arithmetic number, because the mean of its divisors is an integer number (7071939803826).

Almost surely, 2^{121301312323120} is an apocalyptic number.

121301312323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301312323120 is an abundant number, since it is smaller than the sum of its proper divisors (161576279829920).

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

121301312323120 is a wasteful number, since it uses less digits than its factorization.

121301312323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580865613 (or 4580865607 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121301312323120 its reverse (21323213103121), we get a palindrome (142624525426241).

The spelling of 121301312323120 in words is "one hundred twenty-one trillion, three hundred one billion, three hundred twelve million, three hundred twenty-three thousand, one hundred twenty".