121213030300 has 72 divisors (see below), whose sum is σ = 265103226752. Its totient is φ = 48104280000.

The previous prime is 121213030291. The next prime is 121213030303. The reversal of 121213030300 is 3030312121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213030303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13328755 + ... + 13337845.

Almost surely, 2^121213030300 is an apocalyptic number.

121213030300 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 121213030300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132551613376).

121213030300 is an abundant number, since it is smaller than the sum of its proper divisors (143890196452).

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

121213030300 is a wasteful number, since it uses less digits than its factorization.

121213030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10139 (or 10132 counting only the distinct ones).

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

Adding to 121213030300 its reverse (3030312121), we get a palindrome (124243342421).

The spelling of 121213030300 in words is "one hundred twenty-one billion, two hundred thirteen million, thirty thousand, three hundred".