2101111424 has 64 divisors (see below), whose sum is σ = 4266749760. Its totient is φ = 1030385664.

The previous prime is 2101111417. The next prime is 2101111427. The reversal of 2101111424 is 4241111012.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2101111427) 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, 2889749 + ... + 2890475.

It is an arithmetic number, because the mean of its divisors is an integer number (66667965).

Almost surely, 2^2101111424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133374880).

2101111424 is an abundant number, since it is smaller than the sum of its proper divisors (2165638336).

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

2101111424 is an equidigital number, since it uses as much as digits as its factorization.

2101111424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2101111424 is about 45837.8819755014. The cubic root of 2101111424 is about 1280.8050404484.

Adding to 2101111424 its reverse (4241111012), we get a palindrome (6342222436).

The spelling of 2101111424 in words is "two billion, one hundred one million, one hundred eleven thousand, four hundred twenty-four".