213421324003 has 4 divisors (see below), whose sum is σ = 213958909600. Its totient is φ = 212883738408.

The previous prime is 213421323943. The next prime is 213421324033. The reversal of 213421324003 is 300423124312.

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 213421324003 - 2⁹ = 213421323491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213421324033) 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, 268792203 + ... + 268792996.

It is an arithmetic number, because the mean of its divisors is an integer number (53489727400).

Almost surely, 2^213421324003 is an apocalyptic number.

213421324003 is a deficient number, since it is larger than the sum of its proper divisors (537585597).

213421324003 is an equidigital number, since it uses as much as digits as its factorization.

213421324003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537585596.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213421324003 its reverse (300423124312), we get a palindrome (513844448315).

The spelling of 213421324003 in words is "two hundred thirteen billion, four hundred twenty-one million, three hundred twenty-four thousand, three".