201343023 has 16 divisors (see below), whose sum is σ = 340898560. Its totient is φ = 115053048.

The previous prime is 201343013. The next prime is 201343031. The reversal of 201343023 is 320343102.

It is not a de Polignac number, because 201343023 - 2¹⁷ = 201211951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201342987 and 201343005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201343013) 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, 532465 + ... + 532842.

It is an arithmetic number, because the mean of its divisors is an integer number (21306160).

Almost surely, 2^201343023 is an apocalyptic number.

201343023 is a deficient number, since it is larger than the sum of its proper divisors (139555537).

201343023 is a wasteful number, since it uses less digits than its factorization.

201343023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065323 (or 1065317 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 201343023 is about 14189.5392102774. The cubic root of 201343023 is about 586.1096361706.

Adding to 201343023 its reverse (320343102), we get a palindrome (521686125).

The spelling of 201343023 in words is "two hundred one million, three hundred forty-three thousand, twenty-three".