202143221103 has 4 divisors (see below), whose sum is σ = 269524294808. Its totient is φ = 134762147400.

The previous prime is 202143221099. The next prime is 202143221107. The reversal of 202143221103 is 301122341202.

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

It is an interprime number because it is at equal distance from previous prime (202143221099) and next prime (202143221107).

It is not a de Polignac number, because 202143221103 - 2² = 202143221099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202143221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202143221107) 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, 33690536848 + ... + 33690536853.

It is an arithmetic number, because the mean of its divisors is an integer number (67381073702).

Almost surely, 2^202143221103 is an apocalyptic number.

202143221103 is a deficient number, since it is larger than the sum of its proper divisors (67381073705).

202143221103 is an equidigital number, since it uses as much as digits as its factorization.

202143221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67381073704.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 202143221103 its reverse (301122341202), we get a palindrome (503265562305).

The spelling of 202143221103 in words is "two hundred two billion, one hundred forty-three million, two hundred twenty-one thousand, one hundred three".