243202320201 has 16 divisors (see below), whose sum is σ = 324635351040. Its totient is φ = 161952193920.

The previous prime is 243202320199. The next prime is 243202320211. The reversal of 243202320201 is 102023202342.

It is not a de Polignac number, because 243202320201 - 2¹ = 243202320199 is a prime.

It is a super-2 number, since 2×243202320201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243202320211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10310461 + ... + 10334021.

It is an arithmetic number, because the mean of its divisors is an integer number (20289709440).

Almost surely, 2^243202320201 is an apocalyptic number.

It is an amenable number.

243202320201 is a deficient number, since it is larger than the sum of its proper divisors (81433030839).

243202320201 is a wasteful number, since it uses less digits than its factorization.

243202320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27296.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 243202320201 its reverse (102023202342), we get a palindrome (345225522543).

The spelling of 243202320201 in words is "two hundred forty-three billion, two hundred two million, three hundred twenty thousand, two hundred one".