202340231 has 2 divisors, whose sum is σ = 202340232. Its totient is φ = 202340230.

The previous prime is 202340227. The next prime is 202340263. The reversal of 202340231 is 132043202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202340231 - 2² = 202340227 is a prime.

It is a super-2 number, since 2×202340231² = 81883138162266722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202340431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101170115 + 101170116.

It is an arithmetic number, because the mean of its divisors is an integer number (101170116).

Almost surely, 2^202340231 is an apocalyptic number.

202340231 is a deficient number, since it is larger than the sum of its proper divisors (1).

202340231 is an equidigital number, since it uses as much as digits as its factorization.

202340231 is an evil number, because the sum of its binary digits is even.

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

The square root of 202340231 is about 14224.6346526018. The cubic root of 202340231 is about 587.0756673959.

Adding to 202340231 its reverse (132043202), we get a palindrome (334383433).

The spelling of 202340231 in words is "two hundred two million, three hundred forty thousand, two hundred thirty-one".