202143131121 has 8 divisors (see below), whose sum is σ = 269527943520. Its totient is φ = 134760203072.

The previous prime is 202143131077. The next prime is 202143131129. The reversal of 202143131121 is 121131341202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202143131121 - 2¹⁷ = 202143000049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202143131129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198195 + ... + 666008.

It is an arithmetic number, because the mean of its divisors is an integer number (33690992940).

Almost surely, 2^202143131121 is an apocalyptic number.

It is an amenable number.

202143131121 is a deficient number, since it is larger than the sum of its proper divisors (67384812399).

202143131121 is an equidigital number, since it uses as much as digits as its factorization.

202143131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942175.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 202143131121 its reverse (121131341202), we get a palindrome (323274472323).

The spelling of 202143131121 in words is "two hundred two billion, one hundred forty-three million, one hundred thirty-one thousand, one hundred twenty-one".