202430243 has 4 divisors (see below), whose sum is σ = 207367608. Its totient is φ = 197492880.

The previous prime is 202430231. The next prime is 202430273. The reversal of 202430243 is 342034202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202430243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202430273) 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, 2468621 + ... + 2468702.

It is an arithmetic number, because the mean of its divisors is an integer number (51841902).

Almost surely, 2^202430243 is an apocalyptic number.

202430243 is a deficient number, since it is larger than the sum of its proper divisors (4937365).

202430243 is an equidigital number, since it uses as much as digits as its factorization.

202430243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937364.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 202430243 is about 14227.7982484993. The cubic root of 202430243 is about 587.1627089442.

Adding to 202430243 its reverse (342034202), we get a palindrome (544464445).

The spelling of 202430243 in words is "two hundred two million, four hundred thirty thousand, two hundred forty-three".