2820806442203 has 4 divisors (see below), whose sum is σ = 2827703279880. Its totient is φ = 2813909604528.

The previous prime is 2820806442143. The next prime is 2820806442229. The reversal of 2820806442203 is 3022446080282.

2820806442203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2820806442203 - 2²⁶ = 2820739333339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820806442803) 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, 3448418225 + ... + 3448419042.

It is an arithmetic number, because the mean of its divisors is an integer number (706925819970).

Almost surely, 2^{2820806442203} is an apocalyptic number.

2820806442203 is a deficient number, since it is larger than the sum of its proper divisors (6896837677).

2820806442203 is an equidigital number, since it uses as much as digits as its factorization.

2820806442203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896837676.

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 2820806442203 in words is "two trillion, eight hundred twenty billion, eight hundred six million, four hundred forty-two thousand, two hundred three".