121002344321100 has 144 divisors (see below), whose sum is σ = 392249762075136. Its totient is φ = 28541093472000.

The previous prime is 121002344321051. The next prime is 121002344321101. The reversal of 121002344321100 is 1123443200121.

It is not an unprimeable number, because it can be changed into a prime (121002344321101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495382996 + ... + 495627195.

Almost surely, 2^{121002344321100} is an apocalyptic number.

121002344321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002344321100 is an abundant number, since it is smaller than the sum of its proper divisors (271247417754036).

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

121002344321100 is a wasteful number, since it uses less digits than its factorization.

121002344321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991010256 (or 991010249 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121002344321100 its reverse (1123443200121), we get a palindrome (122125787521221).

The spelling of 121002344321100 in words is "one hundred twenty-one trillion, two billion, three hundred forty-four million, three hundred twenty-one thousand, one hundred".