2123241472 has 72 divisors (see below), whose sum is σ = 4646530980. Its totient is φ = 961966080.

The previous prime is 2123241383. The next prime is 2123241511. The reversal of 2123241472 is 2741423212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123241472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6915943 + ... + 6916249.

Almost surely, 2^2123241472 is an apocalyptic number.

2123241472 is a gapful number since it is divisible by the number (22) 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 2123241472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2323265490).

2123241472 is an abundant number, since it is smaller than the sum of its proper divisors (2523289508).

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

2123241472 is an frugal number, since it uses more digits than its factorization.

2123241472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 320 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 2123241472 is about 46078.6444245054. The cubic root of 2123241472 is about 1285.2860566202.

Adding to 2123241472 its reverse (2741423212), we get a palindrome (4864664684).

The spelling of 2123241472 in words is "two billion, one hundred twenty-three million, two hundred forty-one thousand, four hundred seventy-two".