21103303422 has 16 divisors (see below), whose sum is σ = 43662007440. Its totient is φ = 6791867712.

The previous prime is 21103303421. The next prime is 21103303427. The reversal of 21103303422 is 22430330112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103303421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60641503 + ... + 60641850.

It is an arithmetic number, because the mean of its divisors is an integer number (2728875465).

Almost surely, 2^21103303422 is an apocalyptic number.

21103303422 is an abundant number, since it is smaller than the sum of its proper divisors (22558704018).

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

21103303422 is a wasteful number, since it uses less digits than its factorization.

21103303422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121283387.

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

Adding to 21103303422 its reverse (22430330112), we get a palindrome (43533633534).

The spelling of 21103303422 in words is "twenty-one billion, one hundred three million, three hundred three thousand, four hundred twenty-two".