2144323231 has 4 divisors (see below), whose sum is σ = 2144560264. Its totient is φ = 2144086200.

The previous prime is 2144323217. The next prime is 2144323273. The reversal of 2144323231 is 1323234412.

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

It is a cyclic number.

It is not a de Polignac number, because 2144323231 - 2¹³ = 2144315039 is a prime.

It is a super-2 number, since 2×2144323231² = 9196244238012558722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144323196 and 2144323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144323201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104385 + ... + 123226.

It is an arithmetic number, because the mean of its divisors is an integer number (536140066).

Almost surely, 2^2144323231 is an apocalyptic number.

2144323231 is a deficient number, since it is larger than the sum of its proper divisors (237033).

2144323231 is an equidigital number, since it uses as much as digits as its factorization.

2144323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237032.

The product of its digits is 3456, while the sum is 25.

The square root of 2144323231 is about 46306.8378428068. The cubic root of 2144323231 is about 1289.5259422307.

Adding to 2144323231 its reverse (1323234412), we get a palindrome (3467557643).

The spelling of 2144323231 in words is "two billion, one hundred forty-four million, three hundred twenty-three thousand, two hundred thirty-one".