21032230232 has 16 divisors (see below), whose sum is σ = 42468926640. Its totient is φ = 9707183136.

The previous prime is 21032230231. The next prime is 21032230259. The reversal of 21032230232 is 23203223012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032230231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101116388 + ... + 101116595.

It is an arithmetic number, because the mean of its divisors is an integer number (2654307915).

Almost surely, 2^21032230232 is an apocalyptic number.

It is an amenable number.

21032230232 is an abundant number, since it is smaller than the sum of its proper divisors (21436696408).

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

21032230232 is a wasteful number, since it uses less digits than its factorization.

21032230232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202233002 (or 202232998 counting only the distinct ones).

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

Adding to 21032230232 its reverse (23203223012), we get a palindrome (44235453244).

The spelling of 21032230232 in words is "twenty-one billion, thirty-two million, two hundred thirty thousand, two hundred thirty-two".