201003421003 has 32 divisors (see below), whose sum is σ = 252805754880. Its totient is φ = 155252086560.

The previous prime is 201003421001. The next prime is 201003421007. The reversal of 201003421003 is 300124300102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201003421003 - 2¹ = 201003421001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201003421001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6867426 + ... + 6896632.

It is an arithmetic number, because the mean of its divisors is an integer number (7900179840).

Almost surely, 2^201003421003 is an apocalyptic number.

201003421003 is a deficient number, since it is larger than the sum of its proper divisors (51802333877).

201003421003 is a wasteful number, since it uses less digits than its factorization.

201003421003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30007.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201003421003 its reverse (300124300102), we get a palindrome (501127721105).

The spelling of 201003421003 in words is "two hundred one billion, three million, four hundred twenty-one thousand, three".