2106111700 has 72 divisors (see below), whose sum is σ = 5698010304. Its totient is φ = 656448000.

The previous prime is 2106111671. The next prime is 2106111703. The reversal of 2106111700 is 71116012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106111703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129061 + ... + 144460.

It is an arithmetic number, because the mean of its divisors is an integer number (79139032).

Almost surely, 2^2106111700 is an apocalyptic number.

2106111700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106111700 is an abundant number, since it is smaller than the sum of its proper divisors (3591898604).

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

2106111700 is a wasteful number, since it uses less digits than its factorization.

2106111700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273553 (or 273546 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 2106111700 is about 45892.3926157702. The cubic root of 2106111700 is about 1281.8202658359.

Adding to 2106111700 its reverse (71116012), we get a palindrome (2177227712).

It can be divided in two parts, 21061 and 11700, that added together give a square (32761 = 181²).

The spelling of 2106111700 in words is "two billion, one hundred six million, one hundred eleven thousand, seven hundred".