21003124420014 has 16 divisors (see below), whose sum is σ = 45824998734720. Its totient is φ = 6364583157560.

The previous prime is 21003124419989. The next prime is 21003124420027. The reversal of 21003124420014 is 41002442130012.

It is a super-2 number, since 2×21003124420014² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 159114578874 + ... + 159114579005.

It is an arithmetic number, because the mean of its divisors is an integer number (2864062420920).

Almost surely, 2^{21003124420014} is an apocalyptic number.

21003124420014 is an abundant number, since it is smaller than the sum of its proper divisors (24821874314706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21003124420014 is a wasteful number, since it uses less digits than its factorization.

21003124420014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318229157895.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21003124420014 its reverse (41002442130012), we get a palindrome (62005566550026).

The spelling of 21003124420014 in words is "twenty-one trillion, three billion, one hundred twenty-four million, four hundred twenty thousand, fourteen".