101011109999980 has 48 divisors (see below), whose sum is σ = 212685729391296. Its totient is φ = 40297347383040.

The previous prime is 101011109999929. The next prime is 101011109999981. The reversal of 101011109999980 is 89999901110101.

It is not an unprimeable number, because it can be changed into a prime (101011109999981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59563390 + ... + 61235770.

It is an arithmetic number, because the mean of its divisors is an integer number (4430952695652).

Almost surely, 2^{101011109999980} is an apocalyptic number.

101011109999980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101011109999980 is an abundant number, since it is smaller than the sum of its proper divisors (111674619391316).

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

101011109999980 is a wasteful number, since it uses less digits than its factorization.

101011109999980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680394 (or 1680392 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 58.

The spelling of 101011109999980 in words is "one hundred one trillion, eleven billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred eighty".