2143442311 has 2 divisors, whose sum is σ = 2143442312. Its totient is φ = 2143442310.

The previous prime is 2143442291. The next prime is 2143442317. The reversal of 2143442311 is 1132443412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143442311 - 2⁹ = 2143441799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143442317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071721155 + 1071721156.

It is an arithmetic number, because the mean of its divisors is an integer number (1071721156).

Almost surely, 2^2143442311 is an apocalyptic number.

2143442311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143442311 is an equidigital number, since it uses as much as digits as its factorization.

2143442311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 2143442311 is about 46297.3250955171. The cubic root of 2143442311 is about 1289.3493325403.

Adding to 2143442311 its reverse (1132443412), we get a palindrome (3275885723).

The spelling of 2143442311 in words is "two billion, one hundred forty-three million, four hundred forty-two thousand, three hundred eleven".