21113100414424 has 16 divisors (see below), whose sum is σ = 40864065318720. Its totient is φ = 10216016329440.

The previous prime is 21113100414407. The next prime is 21113100414433. The reversal of 21113100414424 is 42441400131112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21113100414392 and 21113100414401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42566734459 + ... + 42566734954.

It is an arithmetic number, because the mean of its divisors is an integer number (2554004082420).

Almost surely, 2^{21113100414424} is an apocalyptic number.

It is an amenable number.

21113100414424 is a deficient number, since it is larger than the sum of its proper divisors (19750964904296).

21113100414424 is a wasteful number, since it uses less digits than its factorization.

21113100414424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85133469450 (or 85133469446 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 21113100414424 its reverse (42441400131112), we get a palindrome (63554500545536).

The spelling of 21113100414424 in words is "twenty-one trillion, one hundred thirteen billion, one hundred million, four hundred fourteen thousand, four hundred twenty-four".