21330117032 has 64 divisors (see below), whose sum is σ = 46412563200. Its totient is φ = 9000875520.

The previous prime is 21330117007. The next prime is 21330117047. The reversal of 21330117032 is 23071103312.

It is a junction number, because it is equal to n+sod(n) for n = 21330116989 and 21330117007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575394 + ... + 2583662.

It is an arithmetic number, because the mean of its divisors is an integer number (725196300).

Almost surely, 2^21330117032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21330117032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23206281600).

21330117032 is an abundant number, since it is smaller than the sum of its proper divisors (25082446168).

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

21330117032 is a wasteful number, since it uses less digits than its factorization.

21330117032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986 (or 8982 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The spelling of 21330117032 in words is "twenty-one billion, three hundred thirty million, one hundred seventeen thousand, thirty-two".