201050128403 has 8 divisors (see below), whose sum is σ = 207664652160. Its totient is φ = 194443669440.

The previous prime is 201050128393. The next prime is 201050128427. The reversal of 201050128403 is 304821050102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201050128403 - 2¹² = 201050124307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201050128003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1965500 + ... + 2065257.

It is an arithmetic number, because the mean of its divisors is an integer number (25958081520).

Almost surely, 2^201050128403 is an apocalyptic number.

201050128403 is a deficient number, since it is larger than the sum of its proper divisors (6614523757).

201050128403 is a wasteful number, since it uses less digits than its factorization.

201050128403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032397.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 201050128403 its reverse (304821050102), we get a palindrome (505871178505).

The spelling of 201050128403 in words is "two hundred one billion, fifty million, one hundred twenty-eight thousand, four hundred three".