21403330120000 has 140 divisors (see below), whose sum is σ = 53351192353536. Its totient is φ = 8516505280000.

The previous prime is 21403330119973. The next prime is 21403330120049. The reversal of 21403330120000 is 2103330412.

It is a self number, because there is not a number n which added to its sum of digits gives 21403330120000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6239259 + ... + 9040741.

Almost surely, 2^{21403330120000} is an apocalyptic number.

21403330120000 is a gapful number since it is divisible by the number (20) 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 21403330120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26675596176768).

21403330120000 is an abundant number, since it is smaller than the sum of its proper divisors (31947862233536).

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

21403330120000 is an equidigital number, since it uses as much as digits as its factorization.

21403330120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801706 (or 2801681 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21403330120000 its reverse (2103330412), we get a palindrome (21405433450412).

The spelling of 21403330120000 in words is "twenty-one trillion, four hundred three billion, three hundred thirty million, one hundred twenty thousand".