21033014203 has 4 divisors (see below), whose sum is σ = 21033626080. Its totient is φ = 21032402328.

The previous prime is 21033014183. The next prime is 21033014213. The reversal of 21033014203 is 30241033012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21033014203 - 2¹³ = 21033006011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033014213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251100 + ... + 324217.

It is an arithmetic number, because the mean of its divisors is an integer number (5258406520).

Almost surely, 2^21033014203 is an apocalyptic number.

21033014203 is a deficient number, since it is larger than the sum of its proper divisors (611877).

21033014203 is an equidigital number, since it uses as much as digits as its factorization.

21033014203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611876.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21033014203 its reverse (30241033012), we get a palindrome (51274047215).

The spelling of 21033014203 in words is "twenty-one billion, thirty-three million, fourteen thousand, two hundred three".