21103422330 has 16 divisors (see below), whose sum is σ = 50648213664. Its totient is φ = 5627579280.

The previous prime is 21103422317. The next prime is 21103422331. The reversal of 21103422330 is 3322430112.

It is a junction number, because it is equal to n+sod(n) for n = 21103422297 and 21103422306.

It is not an unprimeable number, because it can be changed into a prime (21103422331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351723676 + ... + 351723735.

It is an arithmetic number, because the mean of its divisors is an integer number (3165513354).

Almost surely, 2^21103422330 is an apocalyptic number.

21103422330 is an abundant number, since it is smaller than the sum of its proper divisors (29544791334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21103422330 is a wasteful number, since it uses less digits than its factorization.

21103422330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703447421.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21103422330 its reverse (3322430112), we get a palindrome (24425852442).

The spelling of 21103422330 in words is "twenty-one billion, one hundred three million, four hundred twenty-two thousand, three hundred thirty".