21244142000403 has 64 divisors (see below), whose sum is σ = 36068454528000. Its totient is φ = 12105959162112.

The previous prime is 21244142000401. The next prime is 21244142000443. The reversal of 21244142000403 is 30400024144212.

21244142000403 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 414 + 200 + 0 + 40 + 3 = 666.

It is not a de Polignac number, because 21244142000403 - 2¹ = 21244142000401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21244142000401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107119308 + ... + 107317446.

It is an arithmetic number, because the mean of its divisors is an integer number (563569602000).

Almost surely, 2^{21244142000403} is an apocalyptic number.

21244142000403 is a deficient number, since it is larger than the sum of its proper divisors (14824312527597).

21244142000403 is a wasteful number, since it uses less digits than its factorization.

21244142000403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199721 (or 199715 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 21244142000403 its reverse (30400024144212), we get a palindrome (51644166144615).

The spelling of 21244142000403 in words is "twenty-one trillion, two hundred forty-four billion, one hundred forty-two million, four hundred three", and thus it is an aban number.