311440333012141 has 2 divisors, whose sum is σ = 311440333012142. Its totient is φ = 311440333012140.

The previous prime is 311440333012093. The next prime is 311440333012271. The reversal of 311440333012141 is 141210333044113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216603216762916 + 94837116249225 = 14717446^2 + 9738435^2 .

It is an emirp because it is prime and its reverse (141210333044113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311440333012141 - 2²¹ = 311440330914989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311440333022141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720166506070 + 155720166506071.

It is an arithmetic number, because the mean of its divisors is an integer number (155720166506071).

Almost surely, 2^{311440333012141} is an apocalyptic number.

It is an amenable number.

311440333012141 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440333012141 is an equidigital number, since it uses as much as digits as its factorization.

311440333012141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 311440333012141 its reverse (141210333044113), we get a palindrome (452650666056254).

The spelling of 311440333012141 in words is "three hundred eleven trillion, four hundred forty billion, three hundred thirty-three million, twelve thousand, one hundred forty-one".