21232023120111 has 16 divisors (see below), whose sum is σ = 28438972617728. Its totient is φ = 14090020437600.

The previous prime is 21232023120103. The next prime is 21232023120167. The reversal of 21232023120111 is 11102132023212.

It is not a de Polignac number, because 21232023120111 - 2³ = 21232023120103 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 (21232023120611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17227195 + ... + 18418476.

It is an arithmetic number, because the mean of its divisors is an integer number (1777435788608).

Almost surely, 2^{21232023120111} is an apocalyptic number.

21232023120111 is a deficient number, since it is larger than the sum of its proper divisors (7206949497617).

21232023120111 is a wasteful number, since it uses less digits than its factorization.

21232023120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35646582.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21232023120111 its reverse (11102132023212), we get a palindrome (32334155143323).

The spelling of 21232023120111 in words is "twenty-one trillion, two hundred thirty-two billion, twenty-three million, one hundred twenty thousand, one hundred eleven".