2124143321 has 4 divisors (see below), whose sum is σ = 2124328932. Its totient is φ = 2123957712.

The previous prime is 2124143303. The next prime is 2124143327. The reversal of 2124143321 is 1233414212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 489073225 + 1635070096 = 22115^2 + 40436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124143321 - 2²² = 2119949017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2124143327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74426 + ... + 98931.

It is an arithmetic number, because the mean of its divisors is an integer number (531082233).

Almost surely, 2^2124143321 is an apocalyptic number.

It is an amenable number.

2124143321 is a deficient number, since it is larger than the sum of its proper divisors (185611).

2124143321 is a wasteful number, since it uses less digits than its factorization.

2124143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185610.

The product of its digits is 1152, while the sum is 23.

The square root of 2124143321 is about 46088.4293613918. The cubic root of 2124143321 is about 1285.4680063866.

Adding to 2124143321 its reverse (1233414212), we get a palindrome (3357557533).

The spelling of 2124143321 in words is "two billion, one hundred twenty-four million, one hundred forty-three thousand, three hundred twenty-one".