2102320443 has 4 divisors (see below), whose sum is σ = 2803093928. Its totient is φ = 1401546960.

The previous prime is 2102320411. The next prime is 2102320447. The reversal of 2102320443 is 3440232012.

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

It is not a de Polignac number, because 2102320443 - 2⁵ = 2102320411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102320447) 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, 350386738 + ... + 350386743.

It is an arithmetic number, because the mean of its divisors is an integer number (700773482).

Almost surely, 2^2102320443 is an apocalyptic number.

2102320443 is a deficient number, since it is larger than the sum of its proper divisors (700773485).

2102320443 is an equidigital number, since it uses as much as digits as its factorization.

2102320443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700773484.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2102320443 is about 45851.0680682577. The cubic root of 2102320443 is about 1281.0506597734.

Adding to 2102320443 its reverse (3440232012), we get a palindrome (5542552455).

The spelling of 2102320443 in words is "two billion, one hundred two million, three hundred twenty thousand, four hundred forty-three".