2120001209983 has 4 divisors (see below), whose sum is σ = 2125536461568. Its totient is φ = 2114465958400.

The previous prime is 2120001209929. The next prime is 2120001209987. The reversal of 2120001209983 is 3899021000212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120001209983 - 2²¹ = 2119999112831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120001209987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767625218 + ... + 2767625983.

It is an arithmetic number, because the mean of its divisors is an integer number (531384115392).

Almost surely, 2^{2120001209983} is an apocalyptic number.

2120001209983 is a deficient number, since it is larger than the sum of its proper divisors (5535251585).

2120001209983 is an equidigital number, since it uses as much as digits as its factorization.

2120001209983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535251584.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 2120001209983 in words is "two trillion, one hundred twenty billion, one million, two hundred nine thousand, nine hundred eighty-three".