2101723344 has 120 divisors (see below), whose sum is σ = 6803439552. Its totient is φ = 593233920.

The previous prime is 2101723339. The next prime is 2101723367. The reversal of 2101723344 is 4433271012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71104 + ... + 96224.

Almost surely, 2^2101723344 is an apocalyptic number.

2101723344 is a gapful number since it is divisible by the number (24) 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 2101723344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3401719776).

2101723344 is an abundant number, since it is smaller than the sum of its proper divisors (4701716208).

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

2101723344 is a wasteful number, since it uses less digits than its factorization.

2101723344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25225 (or 25216 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2101723344 is about 45844.5563180625. The cubic root of 2101723344 is about 1280.9293673702.

Adding to 2101723344 its reverse (4433271012), we get a palindrome (6534994356).

The spelling of 2101723344 in words is "two billion, one hundred one million, seven hundred twenty-three thousand, three hundred forty-four".