21232304030 has 48 divisors (see below), whose sum is σ = 44517955104. Its totient is φ = 7142229120.

The previous prime is 21232304029. The next prime is 21232304057. The reversal of 21232304030 is 3040323212.

It is a junction number, because it is equal to n+sod(n) for n = 21232303993 and 21232304011.

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, 142640 + ... + 250620.

It is an arithmetic number, because the mean of its divisors is an integer number (927457398).

Almost surely, 2^21232304030 is an apocalyptic number.

21232304030 is an abundant number, since it is smaller than the sum of its proper divisors (23285651074).

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

21232304030 is a wasteful number, since it uses less digits than its factorization.

21232304030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108101 (or 108048 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21232304030 its reverse (3040323212), we get a palindrome (24272627242).

The spelling of 21232304030 in words is "twenty-one billion, two hundred thirty-two million, three hundred four thousand, thirty".