202143223100 has 108 divisors (see below), whose sum is σ = 549518750424. Its totient is φ = 63974977920.

The previous prime is 202143223097. The next prime is 202143223141. The reversal of 202143223100 is 1322341202.

202143223100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×202143223100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1522982 + ... + 1650381.

It is an arithmetic number, because the mean of its divisors is an integer number (5088136578).

Almost surely, 2^202143223100 is an apocalyptic number.

202143223100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202143223100 is an abundant number, since it is smaller than the sum of its proper divisors (347375527324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202143223100 is a wasteful number, since it uses less digits than its factorization.

202143223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173404 (or 3173390 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202143223100 its reverse (1322341202), we get a palindrome (203465564302).

The spelling of 202143223100 in words is "two hundred two billion, one hundred forty-three million, two hundred twenty-three thousand, one hundred".