243202113 has 24 divisors (see below), whose sum is σ = 437975616. Its totient is φ = 126338400.

The previous prime is 243202097. The next prime is 243202117. The reversal of 243202113 is 311202342.

It is not a de Polignac number, because 243202113 - 2⁴ = 243202097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243202117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174778 + ... + 176163.

It is an arithmetic number, because the mean of its divisors is an integer number (18248984).

Almost surely, 2^243202113 is an apocalyptic number.

It is an amenable number.

243202113 is a deficient number, since it is larger than the sum of its proper divisors (194773503).

243202113 is a wasteful number, since it uses less digits than its factorization.

243202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350965 (or 350962 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 243202113 is about 15594.9386981803. The cubic root of 243202113 is about 624.1981080175.

Adding to 243202113 its reverse (311202342), we get a palindrome (554404455).

The spelling of 243202113 in words is "two hundred forty-three million, two hundred two thousand, one hundred thirteen".