21134146334 has 48 divisors (see below), whose sum is σ = 37181437440. Its totient is φ = 8825263200.

The previous prime is 21134146333. The next prime is 21134146339. The reversal of 21134146334 is 43364143112.

21134146334 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 21134146334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134146333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5936447 + ... + 5940005.

It is an arithmetic number, because the mean of its divisors is an integer number (774613280).

Almost surely, 2^21134146334 is an apocalyptic number.

21134146334 is a deficient number, since it is larger than the sum of its proper divisors (16047291106).

21134146334 is a wasteful number, since it uses less digits than its factorization.

21134146334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825 (or 3772 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

Adding to 21134146334 its reverse (43364143112), we get a palindrome (64498289446).

The spelling of 21134146334 in words is "twenty-one billion, one hundred thirty-four million, one hundred forty-six thousand, three hundred thirty-four".