201020371670143 has 2 divisors, whose sum is σ = 201020371670144. Its totient is φ = 201020371670142.

The previous prime is 201020371670123. The next prime is 201020371670171. The reversal of 201020371670143 is 341076173020102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201020371670143 - 2²¹ = 201020369572991 is a prime.

It is a super-3 number, since 3×201020371670143³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020371670123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510185835071 + 100510185835072.

It is an arithmetic number, because the mean of its divisors is an integer number (100510185835072).

Almost surely, 2^{201020371670143} is an apocalyptic number.

201020371670143 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020371670143 is an equidigital number, since it uses as much as digits as its factorization.

201020371670143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 201020371670143 in words is "two hundred one trillion, twenty billion, three hundred seventy-one million, six hundred seventy thousand, one hundred forty-three".