121320133320000 has 280 divisors, whose sum is σ = 401157377922400. Its totient is φ = 32348429568000.

The previous prime is 121320133319989. The next prime is 121320133320049. The reversal of 121320133320000 is 23331023121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1179428571 + ... + 1179531429.

Almost surely, 2^{121320133320000} is an apocalyptic number.

121320133320000 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 121320133320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200578688961200).

121320133320000 is an abundant number, since it is smaller than the sum of its proper divisors (279837244602400).

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

121320133320000 is an equidigital number, since it uses as much as digits as its factorization.

121320133320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112723 (or 112698 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121320133320000 its reverse (23331023121), we get a palindrome (121343464343121).

The spelling of 121320133320000 in words is "one hundred twenty-one trillion, three hundred twenty billion, one hundred thirty-three million, three hundred twenty thousand".