21401440000133 has 16 divisors (see below), whose sum is σ = 21450865269120. Its totient is φ = 21352090276800.

The previous prime is 21401440000093. The next prime is 21401440000177. The reversal of 21401440000133 is 33100004410412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21401440000133 is a prime.

It is a super-4 number, since 4×21401440000133⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21401440000099 and 21401440000108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401440002133) 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 15 ways as a sum of consecutive naturals, for example, 4291443266 + ... + 4291448252.

It is an arithmetic number, because the mean of its divisors is an integer number (1340679079320).

Almost surely, 2^{21401440000133} is an apocalyptic number.

It is an amenable number.

21401440000133 is a deficient number, since it is larger than the sum of its proper divisors (49425268987).

21401440000133 is a wasteful number, since it uses less digits than its factorization.

21401440000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10748.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21401440000133 its reverse (33100004410412), we get a palindrome (54501444410545).

The spelling of 21401440000133 in words is "twenty-one trillion, four hundred one billion, four hundred forty million, one hundred thirty-three", and thus it is an aban number.