21113441132234 has 32 divisors (see below), whose sum is σ = 34586855547840. Its totient is φ = 9586580976000.

The previous prime is 21113441132221. The next prime is 21113441132249. The reversal of 21113441132234 is 43223114431112.

It is a self number, because there is not a number n which added to its sum of digits gives 21113441132234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126615317 + ... + 126781959.

It is an arithmetic number, because the mean of its divisors is an integer number (1080839235870).

Almost surely, 2^{21113441132234} is an apocalyptic number.

21113441132234 is a deficient number, since it is larger than the sum of its proper divisors (13473414415606).

21113441132234 is a wasteful number, since it uses less digits than its factorization.

21113441132234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172886.

The product of its digits is 13824, while the sum is 32.

Adding to 21113441132234 its reverse (43223114431112), we get a palindrome (64336555563346).

The spelling of 21113441132234 in words is "twenty-one trillion, one hundred thirteen billion, four hundred forty-one million, one hundred thirty-two thousand, two hundred thirty-four".