121203314100 has 216 divisors, whose sum is σ = 418113364032. Its totient is φ = 29122329600.

The previous prime is 121203314093. The next prime is 121203314123. The reversal of 121203314100 is 1413302121.

121203314100 is a `hidden beast` number, since 1 + 21 + 203 + 31 + 410 + 0 = 666.

121203314100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1064529 + ... + 1172871.

Almost surely, 2^121203314100 is an apocalyptic number.

121203314100 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 121203314100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209056682016).

121203314100 is an abundant number, since it is smaller than the sum of its proper divisors (296910049932).

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

121203314100 is a wasteful number, since it uses less digits than its factorization.

121203314100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108487 (or 108477 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121203314100 its reverse (1413302121), we get a palindrome (122616616221).

The spelling of 121203314100 in words is "one hundred twenty-one billion, two hundred three million, three hundred fourteen thousand, one hundred".