101721329980 has 24 divisors (see below), whose sum is σ = 213647142240. Its totient is φ = 40682370240.

The previous prime is 101721329977. The next prime is 101721330043. The reversal of 101721329980 is 89923127101.

101721329980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 248560 + ... + 514999.

It is an arithmetic number, because the mean of its divisors is an integer number (8901964260).

Almost surely, 2^101721329980 is an apocalyptic number.

101721329980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101721329980 is an abundant number, since it is smaller than the sum of its proper divisors (111925812260).

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

101721329980 is a wasteful number, since it uses less digits than its factorization.

101721329980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770229 (or 770227 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 101721329980 in words is "one hundred one billion, seven hundred twenty-one million, three hundred twenty-nine thousand, nine hundred eighty".