202143321223 has 4 divisors (see below), whose sum is σ = 202408950528. Its totient is φ = 201877691920.

The previous prime is 202143321199. The next prime is 202143321241. The reversal of 202143321223 is 322123341202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202143321223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202143321293) 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, 132813511 + ... + 132815032.

It is an arithmetic number, because the mean of its divisors is an integer number (50602237632).

Almost surely, 2^202143321223 is an apocalyptic number.

202143321223 is a deficient number, since it is larger than the sum of its proper divisors (265629305).

202143321223 is an equidigital number, since it uses as much as digits as its factorization.

202143321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265629304.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 202143321223 its reverse (322123341202), we get a palindrome (524266662425).

The spelling of 202143321223 in words is "two hundred two billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred twenty-three".