21001332132311 has 8 divisors (see below), whose sum is σ = 21921809714304. Its totient is φ = 20081469232440.

The previous prime is 21001332132283. The next prime is 21001332132379. The reversal of 21001332132311 is 11323123310012.

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

It is not a de Polignac number, because 21001332132311 - 2³⁰ = 21000258390487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001332132811) 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, 153600701 + ... + 153737366.

It is an arithmetic number, because the mean of its divisors is an integer number (2740226214288).

Almost surely, 2^{21001332132311} is an apocalyptic number.

21001332132311 is a deficient number, since it is larger than the sum of its proper divisors (920477581993).

21001332132311 is a wasteful number, since it uses less digits than its factorization.

21001332132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307341061.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21001332132311 its reverse (11323123310012), we get a palindrome (32324455442323).

The spelling of 21001332132311 in words is "twenty-one trillion, one billion, three hundred thirty-two million, one hundred thirty-two thousand, three hundred eleven".