21232114134 has 64 divisors (see below), whose sum is σ = 53084782080. Its totient is φ = 5500005120.

The previous prime is 21232114109. The next prime is 21232114157. The reversal of 21232114134 is 43141123212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110722 + ... + 233930.

It is an arithmetic number, because the mean of its divisors is an integer number (829449720).

Almost surely, 2^21232114134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21232114134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26542391040).

21232114134 is an abundant number, since it is smaller than the sum of its proper divisors (31852667946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232114134 is a wasteful number, since it uses less digits than its factorization.

21232114134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123605.

The product of its digits is 1152, while the sum is 24.

Adding to 21232114134 its reverse (43141123212), we get a palindrome (64373237346).

The spelling of 21232114134 in words is "twenty-one billion, two hundred thirty-two million, one hundred fourteen thousand, one hundred thirty-four".