202013243 has 4 divisors (see below), whose sum is σ = 202298880. Its totient is φ = 201727608.

The previous prime is 202013237. The next prime is 202013257. The reversal of 202013243 is 342310202.

202013243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 202013243 - 2²² = 197818939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202010243) 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, 141755 + ... + 143172.

It is an arithmetic number, because the mean of its divisors is an integer number (50574720).

Almost surely, 2^202013243 is an apocalyptic number.

202013243 is a deficient number, since it is larger than the sum of its proper divisors (285637).

202013243 is an equidigital number, since it uses as much as digits as its factorization.

202013243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285636.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 202013243 is about 14213.1362830306. The cubic root of 202013243 is about 586.7592528132.

Adding to 202013243 its reverse (342310202), we get a palindrome (544323445).

The spelling of 202013243 in words is "two hundred two million, thirteen thousand, two hundred forty-three".