21134343403232 has 48 divisors (see below), whose sum is σ = 43798981842000. Its totient is φ = 10010813690880.

The previous prime is 21134343403183. The next prime is 21134343403241. The reversal of 21134343403232 is 23230434343112.

It is a junction number, because it is equal to n+sod(n) for n = 21134343403192 and 21134343403201.

It is a congruent number.

It is an unprimeable number.

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, 34565132 + ... + 35171252.

It is an arithmetic number, because the mean of its divisors is an integer number (912478788375).

Almost surely, 2^{21134343403232} is an apocalyptic number.

It is an amenable number.

21134343403232 is an abundant number, since it is smaller than the sum of its proper divisors (22664638438768).

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

21134343403232 is a wasteful number, since it uses less digits than its factorization.

21134343403232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663499 (or 663491 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 21134343403232 its reverse (23230434343112), we get a palindrome (44364777746344).

The spelling of 21134343403232 in words is "twenty-one trillion, one hundred thirty-four billion, three hundred forty-three million, four hundred three thousand, two hundred thirty-two".