21103230422 has 48 divisors (see below), whose sum is σ = 33813122112. Its totient is φ = 9875988720.

The previous prime is 21103230419. The next prime is 21103230481. The reversal of 21103230422 is 22403230112.

It is a junction number, because it is equal to n+sod(n) for n = 21103230394 and 21103230403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32819633 + ... + 32820275.

It is an arithmetic number, because the mean of its divisors is an integer number (704440044).

Almost surely, 2^21103230422 is an apocalyptic number.

21103230422 is a deficient number, since it is larger than the sum of its proper divisors (12709891690).

21103230422 is a wasteful number, since it uses less digits than its factorization.

21103230422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21103230422 its reverse (22403230112), we get a palindrome (43506460534).

The spelling of 21103230422 in words is "twenty-one billion, one hundred three million, two hundred thirty thousand, four hundred twenty-two".