2011200980 has 24 divisors (see below), whose sum is σ = 4471965288. Its totient is φ = 757157888.

The previous prime is 2011200979. The next prime is 2011201033. The reversal of 2011200980 is 890021102.

It can be written as a sum of positive squares in 4 ways, for example, as 475501636 + 1535699344 = 21806^2 + 39188^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2957309 + ... + 2957988.

It is an arithmetic number, because the mean of its divisors is an integer number (186331887).

Almost surely, 2^2011200980 is an apocalyptic number.

2011200980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011200980 is an abundant number, since it is smaller than the sum of its proper divisors (2460764308).

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

2011200980 is a wasteful number, since it uses less digits than its factorization.

2011200980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915323 (or 5915321 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2011200980 is about 44846.4154643378. The cubic root of 2011200980 is about 1262.2687310262.

The spelling of 2011200980 in words is "two billion, eleven million, two hundred thousand, nine hundred eighty".