2143224431 has 2 divisors, whose sum is σ = 2143224432. Its totient is φ = 2143224430.

The previous prime is 2143224407. The next prime is 2143224437. The reversal of 2143224431 is 1344223412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143224431 - 2¹⁸ = 2142962287 is a prime.

It is a super-2 number, since 2×2143224431² = 9186821923270547522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2143224431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143224437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071612215 + 1071612216.

It is an arithmetic number, because the mean of its divisors is an integer number (1071612216).

Almost surely, 2^2143224431 is an apocalyptic number.

2143224431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143224431 is an equidigital number, since it uses as much as digits as its factorization.

2143224431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 2143224431 is about 46294.9719840071. The cubic root of 2143224431 is about 1289.3056437893.

Adding to 2143224431 its reverse (1344223412), we get a palindrome (3487447843).

The spelling of 2143224431 in words is "two billion, one hundred forty-three million, two hundred twenty-four thousand, four hundred thirty-one".