2123124340424 has 8 divisors (see below), whose sum is σ = 3980858138310. Its totient is φ = 1061562170208.

The previous prime is 2123124340391. The next prime is 2123124340451. The reversal of 2123124340424 is 4240434213212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1615995203524 + 507129136900 = 1271218^2 + 712130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132695271269 + ... + 132695271284.

Almost surely, 2^{2123124340424} is an apocalyptic number.

It is an amenable number.

2123124340424 is a deficient number, since it is larger than the sum of its proper divisors (1857733797886).

2123124340424 is a wasteful number, since it uses less digits than its factorization.

2123124340424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265390542559 (or 265390542555 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 2123124340424 its reverse (4240434213212), we get a palindrome (6363558553636).

The spelling of 2123124340424 in words is "two trillion, one hundred twenty-three billion, one hundred twenty-four million, three hundred forty thousand, four hundred twenty-four".