201043421193 has 4 divisors (see below), whose sum is σ = 268057894928. Its totient is φ = 134028947460.

The previous prime is 201043421191. The next prime is 201043421209. The reversal of 201043421193 is 391124340102.

201043421193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 201043421193 - 2¹ = 201043421191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201043421193.

It is not an unprimeable number, because it can be changed into a prime (201043421191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33507236863 + ... + 33507236868.

It is an arithmetic number, because the mean of its divisors is an integer number (67014473732).

Almost surely, 2^201043421193 is an apocalyptic number.

It is an amenable number.

201043421193 is a deficient number, since it is larger than the sum of its proper divisors (67014473735).

201043421193 is an equidigital number, since it uses as much as digits as its factorization.

201043421193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67014473734.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 201043421193 its reverse (391124340102), we get a palindrome (592167761295).

The spelling of 201043421193 in words is "two hundred one billion, forty-three million, four hundred twenty-one thousand, one hundred ninety-three".