201044434013 has 4 divisors (see below), whose sum is σ = 207529738368. Its totient is φ = 194559129660.

The previous prime is 201044434001. The next prime is 201044434033. The reversal of 201044434013 is 310434440102.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201044434013 is a prime.

It is a super-2 number, since 2×201044434013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044434033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3242652131 + ... + 3242652192.

It is an arithmetic number, because the mean of its divisors is an integer number (51882434592).

Almost surely, 2^201044434013 is an apocalyptic number.

It is an amenable number.

201044434013 is a deficient number, since it is larger than the sum of its proper divisors (6485304355).

201044434013 is an equidigital number, since it uses as much as digits as its factorization.

201044434013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485304354.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 201044434013 its reverse (310434440102), we get a palindrome (511478874115).

The spelling of 201044434013 in words is "two hundred one billion, forty-four million, four hundred thirty-four thousand, thirteen".