21134300121433 has 8 divisors (see below), whose sum is σ = 21176974897416. Its totient is φ = 21091633430400.

The previous prime is 21134300121409. The next prime is 21134300121439. The reversal of 21134300121433 is 33412100343112.

It can be written as a sum of positive squares in 4 ways, for example, as 8369200203849 + 12765099917584 = 2892957^2 + 3572828^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 21134300121433 - 2⁴¹ = 18935276865881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21134300121439) 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 7 ways as a sum of consecutive naturals, for example, 3225835 + ... + 7257727.

It is an arithmetic number, because the mean of its divisors is an integer number (2647121862177).

Almost surely, 2^{21134300121433} is an apocalyptic number.

It is an amenable number.

21134300121433 is a deficient number, since it is larger than the sum of its proper divisors (42674775983).

21134300121433 is a wasteful number, since it uses less digits than its factorization.

21134300121433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042475.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21134300121433 its reverse (33412100343112), we get a palindrome (54546400464545).

The spelling of 21134300121433 in words is "twenty-one trillion, one hundred thirty-four billion, three hundred million, one hundred twenty-one thousand, four hundred thirty-three".