21413214024 has 16 divisors (see below), whose sum is σ = 53533035120. Its totient is φ = 7137738000.

The previous prime is 21413214023. The next prime is 21413214041. The reversal of 21413214024 is 42041231412.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 892217251 = 21413214024 / (2 + 1 + 4 + 1 + 3 + 2 + 1 + 4 + 0 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 21413213985 and 21413214003.

It is not an unprimeable number, because it can be changed into a prime (21413214023) 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 3 ways as a sum of consecutive naturals, for example, 446108602 + ... + 446108649.

It is an arithmetic number, because the mean of its divisors is an integer number (3345814695).

Almost surely, 2^21413214024 is an apocalyptic number.

21413214024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21413214024 is an abundant number, since it is smaller than the sum of its proper divisors (32119821096).

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

21413214024 is a wasteful number, since it uses less digits than its factorization.

21413214024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892217260 (or 892217256 counting only the distinct ones).

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

Adding to 21413214024 its reverse (42041231412), we get a palindrome (63454445436).

The spelling of 21413214024 in words is "twenty-one billion, four hundred thirteen million, two hundred fourteen thousand, twenty-four".