21331233301 has 8 divisors (see below), whose sum is σ = 25219192320. Its totient is φ = 17653434288.

The previous prime is 21331233281. The next prime is 21331233307. The reversal of 21331233301 is 10333213312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21331233301 - 2⁹ = 21331232789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21331233307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52539781 + ... + 52540186.

It is an arithmetic number, because the mean of its divisors is an integer number (3152399040).

Almost surely, 2^21331233301 is an apocalyptic number.

It is an amenable number.

21331233301 is a deficient number, since it is larger than the sum of its proper divisors (3887959019).

21331233301 is a wasteful number, since it uses less digits than its factorization.

21331233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105080003.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21331233301 its reverse (10333213312), we get a palindrome (31664446613).

The spelling of 21331233301 in words is "twenty-one billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred one".