2120340000 has 120 divisors (see below), whose sum is σ = 6955336080. Its totient is φ = 565408000.

The previous prime is 2120339987. The next prime is 2120340029. The reversal of 2120340000 is 430212.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 42331 + ... + 77669.

It is an arithmetic number, because the mean of its divisors is an integer number (57961134).

Almost surely, 2^2120340000 is an apocalyptic number.

2120340000 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 2120340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3477668040).

2120340000 is an abundant number, since it is smaller than the sum of its proper divisors (4834996080).

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

2120340000 is an equidigital number, since it uses as much as digits as its factorization.

2120340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35372 (or 35349 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2120340000 is about 46047.1497489258. The cubic root of 2120340000 is about 1284.7003293188.

Adding to 2120340000 its reverse (430212), we get a palindrome (2120770212).

The spelling of 2120340000 in words is "two billion, one hundred twenty million, three hundred forty thousand".