201043330013 has 2 divisors, whose sum is σ = 201043330014. Its totient is φ = 201043330012.

The previous prime is 201043329989. The next prime is 201043330031. The reversal of 201043330013 is 310033340102.

Together with next prime (201043330031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161284166404 + 39759163609 = 401602^2 + 199397^2 .

It is a cyclic number.

It is not a de Polignac number, because 201043330013 - 2²² = 201039135709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201043330093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100521665006 + 100521665007.

It is an arithmetic number, because the mean of its divisors is an integer number (100521665007).

Almost surely, 2^201043330013 is an apocalyptic number.

It is an amenable number.

201043330013 is a deficient number, since it is larger than the sum of its proper divisors (1).

201043330013 is an equidigital number, since it uses as much as digits as its factorization.

201043330013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201043330013 its reverse (310033340102), we get a palindrome (511076670115).

The spelling of 201043330013 in words is "two hundred one billion, forty-three million, three hundred thirty thousand, thirteen".