2123345724 has 48 divisors (see below), whose sum is σ = 5010445440. Its totient is φ = 699814080.

The previous prime is 2123345723. The next prime is 2123345729. The reversal of 2123345724 is 4275433212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123345723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745447 + ... + 748289.

It is an arithmetic number, because the mean of its divisors is an integer number (104384280).

Almost surely, 2^2123345724 is an apocalyptic number.

It is an amenable number.

2123345724 is an abundant number, since it is smaller than the sum of its proper divisors (2887099716).

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

2123345724 is a wasteful number, since it uses less digits than its factorization.

2123345724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530 (or 3528 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 2123345724 is about 46079.7756504955. The cubic root of 2123345724 is about 1285.3070922946.

Adding to 2123345724 its reverse (4275433212), we get a palindrome (6398778936).

The spelling of 2123345724 in words is "two billion, one hundred twenty-three million, three hundred forty-five thousand, seven hundred twenty-four".