2311121143 has 2 divisors, whose sum is σ = 2311121144. Its totient is φ = 2311121142.

The previous prime is 2311121081. The next prime is 2311121147. The reversal of 2311121143 is 3411211132.

2311121143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311121143 - 2⁹ = 2311120631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311121143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311121147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155560571 + 1155560572.

It is an arithmetic number, because the mean of its divisors is an integer number (1155560572).

Almost surely, 2^2311121143 is an apocalyptic number.

2311121143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311121143 is an equidigital number, since it uses as much as digits as its factorization.

2311121143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 2311121143 is about 48074.1213440246. The cubic root of 2311121143 is about 1322.1302347812.

Adding to 2311121143 its reverse (3411211132), we get a palindrome (5722332275).

The spelling of 2311121143 in words is "two billion, three hundred eleven million, one hundred twenty-one thousand, one hundred forty-three".