2143422321 has 8 divisors (see below), whose sum is σ = 2935137024. Its totient is φ = 1390327920.

The previous prime is 2143422301. The next prime is 2143422353. The reversal of 2143422321 is 1232243412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143422321 - 2¹⁰ = 2143421297 is a prime.

It is a super-2 number, since 2×2143422321² = 9188518492322054082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2143422291 and 2143422300.

It is not an unprimeable number, because it can be changed into a prime (2143422301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9654945 + ... + 9655166.

It is an arithmetic number, because the mean of its divisors is an integer number (366892128).

Almost surely, 2^2143422321 is an apocalyptic number.

It is an amenable number.

2143422321 is a deficient number, since it is larger than the sum of its proper divisors (791714703).

2143422321 is a wasteful number, since it uses less digits than its factorization.

2143422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19310151.

The product of its digits is 2304, while the sum is 24.

The square root of 2143422321 is about 46297.1092078112. The cubic root of 2143422321 is about 1289.3453243190.

Adding to 2143422321 its reverse (1232243412), we get a palindrome (3375665733).

The spelling of 2143422321 in words is "two billion, one hundred forty-three million, four hundred twenty-two thousand, three hundred twenty-one".