202020323103 has 20 divisors (see below), whose sum is σ = 303469408440. Its totient is φ = 133927802352.

The previous prime is 202020323059. The next prime is 202020323143. The reversal of 202020323103 is 301323020202.

It is a happy number.

It is not a de Polignac number, because 202020323103 - 2¹³ = 202020314911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020323143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6952200 + ... + 6981197.

It is an arithmetic number, because the mean of its divisors is an integer number (15173470422).

Almost surely, 2^202020323103 is an apocalyptic number.

202020323103 is a deficient number, since it is larger than the sum of its proper divisors (101449085337).

202020323103 is a wasteful number, since it uses less digits than its factorization.

202020323103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13933588 (or 13933579 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 202020323103 its reverse (301323020202), we get a palindrome (503343343305).

The spelling of 202020323103 in words is "two hundred two billion, twenty million, three hundred twenty-three thousand, one hundred three".