21134344414 has 4 divisors (see below), whose sum is σ = 31701516624. Its totient is φ = 10567172206.

The previous prime is 21134344381. The next prime is 21134344421. The reversal of 21134344414 is 41444343112.

21134344414 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283586102 + ... + 5283586105.

It is an arithmetic number, because the mean of its divisors is an integer number (7925379156).

Almost surely, 2^21134344414 is an apocalyptic number.

21134344414 is a deficient number, since it is larger than the sum of its proper divisors (10567172210).

21134344414 is a wasteful number, since it uses less digits than its factorization.

21134344414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10567172209.

The product of its digits is 18432, while the sum is 31.

Adding to 21134344414 its reverse (41444343112), we get a palindrome (62578687526).

The spelling of 21134344414 in words is "twenty-one billion, one hundred thirty-four million, three hundred forty-four thousand, four hundred fourteen".