2142441321 has 4 divisors (see below), whose sum is σ = 2856588432. Its totient is φ = 1428294212.

The previous prime is 2142441319. The next prime is 2142441361. The reversal of 2142441321 is 1231442412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142441321 - 2¹ = 2142441319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142441291 and 2142441300.

It is not an unprimeable number, because it can be changed into a prime (2142441361) 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, 357073551 + ... + 357073556.

It is an arithmetic number, because the mean of its divisors is an integer number (714147108).

Almost surely, 2^2142441321 is an apocalyptic number.

It is an amenable number.

2142441321 is a deficient number, since it is larger than the sum of its proper divisors (714147111).

2142441321 is an equidigital number, since it uses as much as digits as its factorization.

2142441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714147110.

The product of its digits is 1536, while the sum is 24.

The square root of 2142441321 is about 46286.5133813296. The cubic root of 2142441321 is about 1289.1485920862.

Adding to 2142441321 its reverse (1231442412), we get a palindrome (3373883733).

The spelling of 2142441321 in words is "two billion, one hundred forty-two million, four hundred forty-one thousand, three hundred twenty-one".