101720030137884 has 18 divisors (see below), whose sum is σ = 257125631737520. Its totient is φ = 33906676712616.

The previous prime is 101720030137883. The next prime is 101720030137939. The reversal of 101720030137884 is 488731030027101.

101720030137884 is a `hidden beast` number, since 1 + 0 + 172 + 0 + 0 + 30 + 1 + 378 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101720030137883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1412778196324 + ... + 1412778196395.

Almost surely, 2^{101720030137884} is an apocalyptic number.

It is an amenable number.

101720030137884 is an abundant number, since it is smaller than the sum of its proper divisors (155405601599636).

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

101720030137884 is a wasteful number, since it uses less digits than its factorization.

101720030137884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825556392729 (or 2825556392724 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 101720030137884 in words is "one hundred one trillion, seven hundred twenty billion, thirty million, one hundred thirty-seven thousand, eight hundred eighty-four".