201011199980 has 24 divisors (see below), whose sum is σ = 423035253312. Its totient is φ = 80230816512.

The previous prime is 201011199973. The next prime is 201011199989. The reversal of 201011199980 is 89991110102.

It is not an unprimeable number, because it can be changed into a prime (201011199989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10844477 + ... + 10862996.

It is an arithmetic number, because the mean of its divisors is an integer number (17626468888).

Almost surely, 2^201011199980 is an apocalyptic number.

201011199980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011199980 is an abundant number, since it is smaller than the sum of its proper divisors (222024053332).

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

201011199980 is a wasteful number, since it uses less digits than its factorization.

201011199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21707945 (or 21707943 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 201011199980 in words is "two hundred one billion, eleven million, one hundred ninety-nine thousand, nine hundred eighty".