21120324144003 has 72 divisors (see below), whose sum is σ = 35587296173520. Its totient is φ = 12034975075200.

The previous prime is 21120324143981. The next prime is 21120324144089. The reversal of 21120324144003 is 30044142302112.

21120324144003 is a `hidden beast` number, since 2 + 1 + 1 + 203 + 2 + 414 + 40 + 0 + 3 = 666.

It is not a de Polignac number, because 21120324144003 - 2¹² = 21120324139907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21120324144203) 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 71 ways as a sum of consecutive naturals, for example, 472457553 + ... + 472502253.

It is an arithmetic number, because the mean of its divisors is an integer number (494268002410).

Almost surely, 2^{21120324144003} is an apocalyptic number.

21120324144003 is a deficient number, since it is larger than the sum of its proper divisors (14466972029517).

21120324144003 is a wasteful number, since it uses less digits than its factorization.

21120324144003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47697 (or 47687 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21120324144003 its reverse (30044142302112), we get a palindrome (51164466446115).

The spelling of 21120324144003 in words is "twenty-one trillion, one hundred twenty billion, three hundred twenty-four million, one hundred forty-four thousand, three".