202120320443 has 4 divisors (see below), whose sum is σ = 203178542208. Its totient is φ = 201062098680.

The previous prime is 202120320439. The next prime is 202120320499. The reversal of 202120320443 is 344023021202.

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 202120320443 - 2² = 202120320439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120320043) 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, 529110596 + ... + 529110977.

It is an arithmetic number, because the mean of its divisors is an integer number (50794635552).

Almost surely, 2^202120320443 is an apocalyptic number.

202120320443 is a deficient number, since it is larger than the sum of its proper divisors (1058221765).

202120320443 is a wasteful number, since it uses less digits than its factorization.

202120320443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058221764.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 202120320443 its reverse (344023021202), we get a palindrome (546143341645).

The spelling of 202120320443 in words is "two hundred two billion, one hundred twenty million, three hundred twenty thousand, four hundred forty-three".