121333320000 has 840 divisors, whose sum is σ = 454539900672. Its totient is φ = 30912000000.

The previous prime is 121333319981. The next prime is 121333320011. The reversal of 121333320000 is 23333121.

121333320000 is a `hidden beast` number, since 12 + 1 + 333 + 320 + 0 + 0 + 0 = 666.

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 (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1201319950 + ... + 1201320050.

Almost surely, 2^121333320000 is an apocalyptic number.

121333320000 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 121333320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227269950336).

121333320000 is an abundant number, since it is smaller than the sum of its proper divisors (333206580672).

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

121333320000 is a wasteful number, since it uses less digits than its factorization.

121333320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 121333320000 its reverse (23333121), we get a palindrome (121356653121).

The spelling of 121333320000 in words is "one hundred twenty-one billion, three hundred thirty-three million, three hundred twenty thousand".