10100999980 has 24 divisors (see below), whose sum is σ = 21214030320. Its totient is φ = 4040032320.

The previous prime is 10100999969. The next prime is 10100999981. The reversal of 10100999980 is 8999900101.

It is a self number, because there is not a number n which added to its sum of digits gives 10100999980.

It is not an unprimeable number, because it can be changed into a prime (10100999981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349731 + ... + 377509.

It is an arithmetic number, because the mean of its divisors is an integer number (883917930).

Almost surely, 2^10100999980 is an apocalyptic number.

10100999980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100999980 is an abundant number, since it is smaller than the sum of its proper divisors (11113030340).

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

10100999980 is a wasteful number, since it uses less digits than its factorization.

10100999980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45969 (or 45967 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 10100999980 in words is "ten billion, one hundred million, nine hundred ninety-nine thousand, nine hundred eighty".