311440311030073 has 2 divisors, whose sum is σ = 311440311030074. Its totient is φ = 311440311030072.

The previous prime is 311440311029941. The next prime is 311440311030131. The reversal of 311440311030073 is 370030113044113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311111284892409 + 329026137664 = 17638347^2 + 573608^2 .

It is a cyclic number.

It is not a de Polignac number, because 311440311030073 - 2²⁵ = 311440277475641 is a prime.

It is not a weakly prime, because it can be changed into another prime (311440311030773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720155515036 + 155720155515037.

It is an arithmetic number, because the mean of its divisors is an integer number (155720155515037).

Almost surely, 2^{311440311030073} is an apocalyptic number.

It is an amenable number.

311440311030073 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440311030073 is an equidigital number, since it uses as much as digits as its factorization.

311440311030073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 311440311030073 its reverse (370030113044113), we get a palindrome (681470424074186).

The spelling of 311440311030073 in words is "three hundred eleven trillion, four hundred forty billion, three hundred eleven million, thirty thousand, seventy-three".