2120321230000 has 100 divisors (see below), whose sum is σ = 5162192913240. Its totient is φ = 843389632000.

The previous prime is 2120321229997. The next prime is 2120321230007. The reversal of 2120321230000 is 321230212.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2120321230007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1197732 + ... + 2382268.

Almost surely, 2^{2120321230000} is an apocalyptic number.

2120321230000 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 2120321230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581096456620).

2120321230000 is an abundant number, since it is smaller than the sum of its proper divisors (3041871683240).

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

2120321230000 is a wasteful number, since it uses less digits than its factorization.

2120321230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184744 (or 1184723 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2120321230000 its reverse (321230212), we get a palindrome (2120642460212).

It can be divided in two parts, 21203212 and 30000, that added together give a palindrome (21233212).

The spelling of 2120321230000 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, two hundred thirty thousand".