21302132311 has 8 divisors (see below), whose sum is σ = 21424223744. Its totient is φ = 21180278520.

The previous prime is 21302132287. The next prime is 21302132333. The reversal of 21302132311 is 11323120312.

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

It is a cyclic number.

It is not a de Polignac number, because 21302132311 - 2²⁷ = 21167914583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302132711) 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, 121960 + ... + 239746.

It is an arithmetic number, because the mean of its divisors is an integer number (2678027968).

Almost surely, 2^21302132311 is an apocalyptic number.

21302132311 is a deficient number, since it is larger than the sum of its proper divisors (122091433).

21302132311 is a wasteful number, since it uses less digits than its factorization.

21302132311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118821.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21302132311 its reverse (11323120312), we get a palindrome (32625252623).

The spelling of 21302132311 in words is "twenty-one billion, three hundred two million, one hundred thirty-two thousand, three hundred eleven".