201343023243 has 16 divisors (see below), whose sum is σ = 298505181600. Its totient is φ = 134130032640.

The previous prime is 201343023157. The next prime is 201343023253. The reversal of 201343023243 is 342320343102.

201343023243 is a `hidden beast` number, since 2 + 0 + 1 + 34 + 302 + 324 + 3 = 666.

It is not a de Polignac number, because 201343023243 - 2¹² = 201343019147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201343023253) 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, 2702838 + ... + 2776331.

It is an arithmetic number, because the mean of its divisors is an integer number (18656573850).

Almost surely, 2^201343023243 is an apocalyptic number.

201343023243 is a deficient number, since it is larger than the sum of its proper divisors (97162158357).

201343023243 is a wasteful number, since it uses less digits than its factorization.

201343023243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480539 (or 5480533 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 201343023243 its reverse (342320343102), we get a palindrome (543663366345).

The spelling of 201343023243 in words is "two hundred one billion, three hundred forty-three million, twenty-three thousand, two hundred forty-three".