21022322013203 has 4 divisors (see below), whose sum is σ = 24025510872240. Its totient is φ = 18019133154168.

The previous prime is 21022322013071. The next prime is 21022322013221. The reversal of 21022322013203 is 30231022322012.

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 21022322013203 - 2⁸ = 21022322012947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022322013503) 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, 1501594429508 + ... + 1501594429521.

It is an arithmetic number, because the mean of its divisors is an integer number (6006377718060).

Almost surely, 2^{21022322013203} is an apocalyptic number.

21022322013203 is a deficient number, since it is larger than the sum of its proper divisors (3003188859037).

21022322013203 is an equidigital number, since it uses as much as digits as its factorization.

21022322013203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003188859036.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21022322013203 its reverse (30231022322012), we get a palindrome (51253344335215).

The spelling of 21022322013203 in words is "twenty-one trillion, twenty-two billion, three hundred twenty-two million, thirteen thousand, two hundred three".