201352242143 has 4 divisors (see below), whose sum is σ = 216840876168. Its totient is φ = 185863608120.

The previous prime is 201352242109. The next prime is 201352242181. The reversal of 201352242143 is 341242253102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201352242143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201352242103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7744316993 + ... + 7744317018.

It is an arithmetic number, because the mean of its divisors is an integer number (54210219042).

Almost surely, 2^201352242143 is an apocalyptic number.

201352242143 is a deficient number, since it is larger than the sum of its proper divisors (15488634025).

201352242143 is a wasteful number, since it uses less digits than its factorization.

201352242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15488634024.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 201352242143 its reverse (341242253102), we get a palindrome (542594495245).

The spelling of 201352242143 in words is "two hundred one billion, three hundred fifty-two million, two hundred forty-two thousand, one hundred forty-three".