202102023443 has 4 divisors (see below), whose sum is σ = 202102926408. Its totient is φ = 202101120480.

The previous prime is 202102023421. The next prime is 202102023449. The reversal of 202102023443 is 344320201202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 202102023443 - 2¹⁸ = 202101761299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102023449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163280 + ... + 656402.

It is an arithmetic number, because the mean of its divisors is an integer number (50525731602).

Almost surely, 2^202102023443 is an apocalyptic number.

202102023443 is a deficient number, since it is larger than the sum of its proper divisors (902965).

202102023443 is an equidigital number, since it uses as much as digits as its factorization.

202102023443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902964.

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

Adding to 202102023443 its reverse (344320201202), we get a palindrome (546422224645).

The spelling of 202102023443 in words is "two hundred two billion, one hundred two million, twenty-three thousand, four hundred forty-three".