202313143 has 2 divisors, whose sum is σ = 202313144. Its totient is φ = 202313142.

The previous prime is 202313123. The next prime is 202313171. The reversal of 202313143 is 341313202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202313143 is a prime.

It is a super-4 number, since 4×202313143⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202313143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202313123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101156571 + 101156572.

It is an arithmetic number, because the mean of its divisors is an integer number (101156572).

Almost surely, 2^202313143 is an apocalyptic number.

202313143 is a deficient number, since it is larger than the sum of its proper divisors (1).

202313143 is an equidigital number, since it uses as much as digits as its factorization.

202313143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 202313143 is about 14223.6824697404. The cubic root of 202313143 is about 587.0494682638.

Adding to 202313143 its reverse (341313202), we get a palindrome (543626345).

The spelling of 202313143 in words is "two hundred two million, three hundred thirteen thousand, one hundred forty-three".