1140344311 has 2 divisors, whose sum is σ = 1140344312. Its totient is φ = 1140344310.

The previous prime is 1140344267. The next prime is 1140344323. The reversal of 1140344311 is 1134430411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140344311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140344371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570172155 + 570172156.

It is an arithmetic number, because the mean of its divisors is an integer number (570172156).

Almost surely, 2^1140344311 is an apocalyptic number.

1140344311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140344311 is an equidigital number, since it uses as much as digits as its factorization.

1140344311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1140344311 is about 33768.9844531931. The cubic root of 1140344311 is about 1044.7490865270.

Adding to 1140344311 its reverse (1134430411), we get a palindrome (2274774722).

The spelling of 1140344311 in words is "one billion, one hundred forty million, three hundred forty-four thousand, three hundred eleven".