21503024053214 has 16 divisors (see below), whose sum is σ = 35187547812336. Its totient is φ = 9773884848000.

The previous prime is 21503024053171. The next prime is 21503024053219. The reversal of 21503024053214 is 41235042030512.

It is a super-2 number, since 2×21503024053214² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21503024053219) 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, 9834137 + ... + 11820164.

It is an arithmetic number, because the mean of its divisors is an integer number (2199221738271).

Almost surely, 2^{21503024053214} is an apocalyptic number.

21503024053214 is a deficient number, since it is larger than the sum of its proper divisors (13684523759122).

21503024053214 is a wasteful number, since it uses less digits than its factorization.

21503024053214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21699451.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 21503024053214 its reverse (41235042030512), we get a palindrome (62738066083726).

The spelling of 21503024053214 in words is "twenty-one trillion, five hundred three billion, twenty-four million, fifty-three thousand, two hundred fourteen".