21113232312112 has 40 divisors (see below), whose sum is σ = 41271983062416. Its totient is φ = 10462411954176.

The previous prime is 21113232312091. The next prime is 21113232312119. The reversal of 21113232312112 is 21121323231112.

It is not an unprimeable number, because it can be changed into a prime (21113232312119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24117163 + ... + 24977269.

Almost surely, 2^{21113232312112} is an apocalyptic number.

It is an amenable number.

21113232312112 is a deficient number, since it is larger than the sum of its proper divisors (20158750750304).

21113232312112 is a wasteful number, since it uses less digits than its factorization.

21113232312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873805 (or 873799 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 21113232312112 its reverse (21121323231112), we get a palindrome (42234555543224).

The spelling of 21113232312112 in words is "twenty-one trillion, one hundred thirteen billion, two hundred thirty-two million, three hundred twelve thousand, one hundred twelve".