100111010999980 has 48 divisors (see below), whose sum is σ = 210860591497920. Its totient is φ = 39924890707968.

The previous prime is 100111010999971. The next prime is 100111010999981. The reversal of 100111010999980 is 89999010111001.

It is not an unprimeable number, because it can be changed into a prime (100111010999981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600538281 + ... + 600704959.

It is an arithmetic number, because the mean of its divisors is an integer number (4392928989540).

Almost surely, 2^{100111010999980} is an apocalyptic number.

100111010999980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111010999980 is an abundant number, since it is smaller than the sum of its proper divisors (110749580497940).

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

100111010999980 is a wasteful number, since it uses less digits than its factorization.

100111010999980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256138 (or 256136 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 49.

The spelling of 100111010999980 in words is "one hundred trillion, one hundred eleven billion, ten million, nine hundred ninety-nine thousand, nine hundred eighty".