21101032332424 has 16 divisors (see below), whose sum is σ = 43161202498320. Its totient is φ = 9591378332880.

The previous prime is 21101032332389. The next prime is 21101032332433. The reversal of 21101032332424 is 42423323010112.

It is a junction number, because it is equal to n+sod(n) for n = 21101032332392 and 21101032332401.

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, 119892229074 + ... + 119892229249.

It is an arithmetic number, because the mean of its divisors is an integer number (2697575156145).

Almost surely, 2^{21101032332424} is an apocalyptic number.

It is an amenable number.

21101032332424 is an abundant number, since it is smaller than the sum of its proper divisors (22060170165896).

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

21101032332424 is a wasteful number, since it uses less digits than its factorization.

21101032332424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239784458340 (or 239784458336 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 21101032332424 its reverse (42423323010112), we get a palindrome (63524355342536).

The spelling of 21101032332424 in words is "twenty-one trillion, one hundred one billion, thirty-two million, three hundred thirty-two thousand, four hundred twenty-four".