21101230024 has 32 divisors (see below), whose sum is σ = 45245044800. Its totient is φ = 9037759680.

The previous prime is 21101230019. The next prime is 21101230063. The reversal of 21101230024 is 42003210112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25707 + ... + 207034.

It is an arithmetic number, because the mean of its divisors is an integer number (1413907650).

Almost surely, 2^21101230024 is an apocalyptic number.

It is an amenable number.

21101230024 is an abundant number, since it is smaller than the sum of its proper divisors (24143814776).

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

21101230024 is a wasteful number, since it uses less digits than its factorization.

21101230024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234373 (or 234369 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21101230024 its reverse (42003210112), we get a palindrome (63104440136).

The spelling of 21101230024 in words is "twenty-one billion, one hundred one million, two hundred thirty thousand, twenty-four".