2111000000 has 98 divisors (see below), whose sum is σ = 5238682944. Its totient is φ = 844000000.

The previous prime is 2110999981. The next prime is 2111000009. The reversal of 2111000000 is 1112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111000009) 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 13 ways as a sum of consecutive naturals, for example, 998945 + ... + 1001055.

Almost surely, 2^2111000000 is an apocalyptic number.

2111000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619341472).

2111000000 is an abundant number, since it is smaller than the sum of its proper divisors (3127682944).

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

2111000000 is an frugal number, since it uses more digits than its factorization.

2111000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 2111000000 is about 45945.6200306406. The cubic root of 2111000000 is about 1282.8112041762.

Adding to 2111000000 its reverse (1112), we get a palindrome (2111001112).

The spelling of 2111000000 in words is "two billion, one hundred eleven million", and thus it is an aban number.