21410244124 has 6 divisors (see below), whose sum is σ = 37467927224. Its totient is φ = 10705122060.

The previous prime is 21410244113. The next prime is 21410244137. The reversal of 21410244124 is 42144201412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676280512 + ... + 2676280519.

Almost surely, 2^21410244124 is an apocalyptic number.

It is an amenable number.

21410244124 is a deficient number, since it is larger than the sum of its proper divisors (16057683100).

21410244124 is a wasteful number, since it uses less digits than its factorization.

21410244124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352561035 (or 5352561033 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 21410244124 its reverse (42144201412), we get a palindrome (63554445536).

The spelling of 21410244124 in words is "twenty-one billion, four hundred ten million, two hundred forty-four thousand, one hundred twenty-four".