21320032011211 has 4 divisors (see below), whose sum is σ = 21320221987624. Its totient is φ = 21319842034800.

The previous prime is 21320032011203. The next prime is 21320032011251. The reversal of 21320032011211 is 11211023002312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21320032011211 - 2³ = 21320032011203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21320032011251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94819770 + ... + 95044351.

It is an arithmetic number, because the mean of its divisors is an integer number (5330055496906).

Almost surely, 2^{21320032011211} is an apocalyptic number.

21320032011211 is a deficient number, since it is larger than the sum of its proper divisors (189976413).

21320032011211 is a wasteful number, since it uses less digits than its factorization.

21320032011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189976412.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21320032011211 its reverse (11211023002312), we get a palindrome (32531055013523).

The spelling of 21320032011211 in words is "twenty-one trillion, three hundred twenty billion, thirty-two million, eleven thousand, two hundred eleven".