202021202143 has 2 divisors, whose sum is σ = 202021202144. Its totient is φ = 202021202142.

The previous prime is 202021202087. The next prime is 202021202177. The reversal of 202021202143 is 341202120202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202021202143 - 2¹⁷ = 202021071071 is a prime.

It is a super-2 number, since 2×202021202143² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202021202143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202021202743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010601071 + 101010601072.

It is an arithmetic number, because the mean of its divisors is an integer number (101010601072).

Almost surely, 2^202021202143 is an apocalyptic number.

202021202143 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021202143 is an equidigital number, since it uses as much as digits as its factorization.

202021202143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202021202143 its reverse (341202120202), we get a palindrome (543223322345).

The spelling of 202021202143 in words is "two hundred two billion, twenty-one million, two hundred two thousand, one hundred forty-three".