21301433132 has 12 divisors (see below), whose sum is σ = 42602866320. Its totient is φ = 9129185616.

The previous prime is 21301433129. The next prime is 21301433171. The reversal of 21301433132 is 23133410312.

21301433132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21301433098 and 21301433107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380382707 + ... + 380382762.

It is an arithmetic number, because the mean of its divisors is an integer number (3550238860).

Almost surely, 2^21301433132 is an apocalyptic number.

It is an amenable number.

21301433132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21301433132 is a wasteful number, since it uses less digits than its factorization.

21301433132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760765480 (or 760765478 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21301433132 its reverse (23133410312), we get a palindrome (44434843444).

The spelling of 21301433132 in words is "twenty-one billion, three hundred one million, four hundred thirty-three thousand, one hundred thirty-two".