101010009999920 has 40 divisors (see below), whose sum is σ = 268398026572704. Its totient is φ = 34632003428352.

The previous prime is 101010009999919. The next prime is 101010010000021. The reversal of 101010009999920 is 29999900010101.

It is a tau number, because it is divible by the number of its divisors (40).

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, 90187508369 + ... + 90187509488.

Almost surely, 2^{101010009999920} is an apocalyptic number.

101010009999920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101010009999920 is an abundant number, since it is smaller than the sum of its proper divisors (167388016572784).

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

101010009999920 is a wasteful number, since it uses less digits than its factorization.

101010009999920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180375017877 (or 180375017871 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 101010009999920 in words is "one hundred one trillion, ten billion, nine million, nine hundred ninety-nine thousand, nine hundred twenty".