21304042433134 has 8 divisors (see below), whose sum is σ = 31964197044960. Its totient is φ = 10649310084816.

The previous prime is 21304042433131. The next prime is 21304042433207. The reversal of 21304042433134 is 43133424040312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21304042433134² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21304042433134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304042433131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1355556054 + ... + 1355571769.

It is an arithmetic number, because the mean of its divisors is an integer number (3995524630620).

Almost surely, 2^{21304042433134} is an apocalyptic number.

21304042433134 is a deficient number, since it is larger than the sum of its proper divisors (10660154611826).

21304042433134 is a wasteful number, since it uses less digits than its factorization.

21304042433134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711131754.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 21304042433134 its reverse (43133424040312), we get a palindrome (64437466473446).

The spelling of 21304042433134 in words is "twenty-one trillion, three hundred four billion, forty-two million, four hundred thirty-three thousand, one hundred thirty-four".