2011271700 has 72 divisors (see below), whose sum is σ = 6161605632. Its totient is φ = 504788480.

The previous prime is 2011271693. The next prime is 2011271701. The reversal of 2011271700 is 71721102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011271701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192084 + ... + 202283.

It is an arithmetic number, because the mean of its divisors is an integer number (85577856).

Almost surely, 2^2011271700 is an apocalyptic number.

2011271700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011271700 is an abundant number, since it is smaller than the sum of its proper divisors (4150333932).

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

2011271700 is a wasteful number, since it uses less digits than its factorization.

2011271700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394401 (or 394394 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 2011271700 is about 44847.2039262204. The cubic root of 2011271700 is about 1262.2835259339.

Adding to 2011271700 its reverse (71721102), we get a palindrome (2082992802).

The spelling of 2011271700 in words is "two billion, eleven million, two hundred seventy-one thousand, seven hundred".