201043330001 has 4 divisors (see below), whose sum is σ = 201044574900. Its totient is φ = 201042085104.

The previous prime is 201043329989. The next prime is 201043330013. The reversal of 201043330001 is 100033340102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100033340102 = 2 ⋅50016670051.

It is an interprime number because it is at equal distance from previous prime (201043329989) and next prime (201043330013).

It can be written as a sum of positive squares in 2 ways, for example, as 13671221776 + 187372108225 = 116924^2 + 432865^2 .

It is a cyclic number.

It is not a de Polignac number, because 201043330001 - 2⁶ = 201043329937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201043330031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336386 + ... + 717803.

It is an arithmetic number, because the mean of its divisors is an integer number (50261143725).

Almost surely, 2^201043330001 is an apocalyptic number.

It is an amenable number.

201043330001 is a deficient number, since it is larger than the sum of its proper divisors (1244899).

201043330001 is a wasteful number, since it uses less digits than its factorization.

201043330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244898.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 201043330001 its reverse (100033340102), we get a palindrome (301076670103).

The spelling of 201043330001 in words is "two hundred one billion, forty-three million, three hundred thirty thousand, one".