201044423403 has 12 divisors (see below), whose sum is σ = 290609024160. Its totient is φ = 133931989296.

The previous prime is 201044423399. The next prime is 201044423407. The reversal of 201044423403 is 304324440102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201044423399) and next prime (201044423407).

It is not a de Polignac number, because 201044423403 - 2² = 201044423399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201044423407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8122483 + ... + 8147196.

It is an arithmetic number, because the mean of its divisors is an integer number (24217418680).

Almost surely, 2^201044423403 is an apocalyptic number.

201044423403 is a deficient number, since it is larger than the sum of its proper divisors (89564600757).

201044423403 is a wasteful number, since it uses less digits than its factorization.

201044423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16271058 (or 16271055 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201044423403 its reverse (304324440102), we get a palindrome (505368863505).

The spelling of 201044423403 in words is "two hundred one billion, forty-four million, four hundred twenty-three thousand, four hundred three".