21203010322 has 16 divisors (see below), whose sum is σ = 35740192320. Its totient is φ = 9360526032.

The previous prime is 21203010289. The next prime is 21203010349. The reversal of 21203010322 is 22301030212.

It is a junction number, because it is equal to n+sod(n) for n = 21203010296 and 21203010305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17727672 + ... + 17728867.

It is an arithmetic number, because the mean of its divisors is an integer number (2233762020).

Almost surely, 2^21203010322 is an apocalyptic number.

21203010322 is a deficient number, since it is larger than the sum of its proper divisors (14537181998).

21203010322 is a wasteful number, since it uses less digits than its factorization.

21203010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35456577.

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

Adding to 21203010322 its reverse (22301030212), we get a palindrome (43504040534).

The spelling of 21203010322 in words is "twenty-one billion, two hundred three million, ten thousand, three hundred twenty-two".