121300244100 has 216 divisors, whose sum is σ = 448542069248. Its totient is φ = 26831347200.

The previous prime is 121300244077. The next prime is 121300244123. The reversal of 121300244100 is 1442003121.

121300244100 is a `hidden beast` number, since 1 + 21 + 300 + 244 + 100 = 666.

121300244100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121300244077) and next prime (121300244123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 115249 + ... + 505848.

Almost surely, 2^121300244100 is an apocalyptic number.

121300244100 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 121300244100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224271034624).

121300244100 is an abundant number, since it is smaller than the sum of its proper divisors (327241825148).

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

121300244100 is a wasteful number, since it uses less digits than its factorization.

121300244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621155 (or 621145 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121300244100 its reverse (1442003121), we get a palindrome (122742247221).

The spelling of 121300244100 in words is "one hundred twenty-one billion, three hundred million, two hundred forty-four thousand, one hundred".