21232002020304 has 80 divisors (see below), whose sum is σ = 58077860779008. Its totient is φ = 6660780466176.

The previous prime is 21232002020269. The next prime is 21232002020347. The reversal of 21232002020304 is 40302020023212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22930129 + ... + 23838095.

Almost surely, 2^{21232002020304} is an apocalyptic number.

21232002020304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21232002020304 is an abundant number, since it is smaller than the sum of its proper divisors (36845858758704).

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

21232002020304 is a wasteful number, since it uses less digits than its factorization.

21232002020304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936652 (or 936646 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 21232002020304 its reverse (40302020023212), we get a palindrome (61534022043516).

The spelling of 21232002020304 in words is "twenty-one trillion, two hundred thirty-two billion, two million, twenty thousand, three hundred four".