2001200104543 has 2 divisors, whose sum is σ = 2001200104544. Its totient is φ = 2001200104542.

The previous prime is 2001200104489. The next prime is 2001200104571. The reversal of 2001200104543 is 3454010021002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001200104543 - 2¹³ = 2001200096351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001200104243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000600052271 + 1000600052272.

It is an arithmetic number, because the mean of its divisors is an integer number (1000600052272).

Almost surely, 2^{2001200104543} is an apocalyptic number.

2001200104543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001200104543 is an equidigital number, since it uses as much as digits as its factorization.

2001200104543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 2001200104543 its reverse (3454010021002), we get a palindrome (5455210125545).

The spelling of 2001200104543 in words is "two trillion, one billion, two hundred million, one hundred four thousand, five hundred forty-three".