21323221130203 has 4 divisors (see below), whose sum is σ = 21323232997360. Its totient is φ = 21323209263048.

The previous prime is 21323221130129. The next prime is 21323221130207. The reversal of 21323221130203 is 30203112232312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 21323221130203 - 2⁴¹ = 19124197874651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323221130207) 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, 2622423 + ... + 7037296.

It is an arithmetic number, because the mean of its divisors is an integer number (5330808249340).

Almost surely, 2^{21323221130203} is an apocalyptic number.

21323221130203 is a deficient number, since it is larger than the sum of its proper divisors (11867157).

21323221130203 is an equidigital number, since it uses as much as digits as its factorization.

21323221130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11867156.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21323221130203 its reverse (30203112232312), we get a palindrome (51526333362515).

The spelling of 21323221130203 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred twenty-one million, one hundred thirty thousand, two hundred three".