121320310300 has 216 divisors, whose sum is σ = 324351990144. Its totient is φ = 39190757760.

The previous prime is 121320310289. The next prime is 121320310301. The reversal of 121320310300 is 3013023121.

121320310300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320310301) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7542867 + ... + 7558933.

It is an arithmetic number, because the mean of its divisors is an integer number (1501629584).

Almost surely, 2^121320310300 is an apocalyptic number.

121320310300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121320310300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162175995072).

121320310300 is an abundant number, since it is smaller than the sum of its proper divisors (203031679844).

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

121320310300 is a wasteful number, since it uses less digits than its factorization.

121320310300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185 (or 16171 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121320310300 its reverse (3013023121), we get a palindrome (124333333421).

The spelling of 121320310300 in words is "one hundred twenty-one billion, three hundred twenty million, three hundred ten thousand, three hundred".