21301332232 has 16 divisors (see below), whose sum is σ = 39944379600. Its totient is φ = 10649497680.

The previous prime is 21301332209. The next prime is 21301332257. The reversal of 21301332232 is 23223310312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65994 + ... + 216697.

It is an arithmetic number, because the mean of its divisors is an integer number (2496523725).

Almost surely, 2^21301332232 is an apocalyptic number.

It is an amenable number.

21301332232 is a deficient number, since it is larger than the sum of its proper divisors (18643047368).

21301332232 is a wasteful number, since it uses less digits than its factorization.

21301332232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292116 (or 292112 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21301332232 its reverse (23223310312), we get a palindrome (44524642544).

The spelling of 21301332232 in words is "twenty-one billion, three hundred one million, three hundred thirty-two thousand, two hundred thirty-two".