311440333034377 has 2 divisors, whose sum is σ = 311440333034378. Its totient is φ = 311440333034376.

The previous prime is 311440333034353. The next prime is 311440333034483. The reversal of 311440333034377 is 773430333044113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158412027681856 + 153028305352521 = 12586184^2 + 12370461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440333034377 is a prime.

It is not a weakly prime, because it can be changed into another prime (311440333032377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720166517188 + 155720166517189.

It is an arithmetic number, because the mean of its divisors is an integer number (155720166517189).

Almost surely, 2^{311440333034377} is an apocalyptic number.

It is an amenable number.

311440333034377 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440333034377 is an equidigital number, since it uses as much as digits as its factorization.

311440333034377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 46.

The spelling of 311440333034377 in words is "three hundred eleven trillion, four hundred forty billion, three hundred thirty-three million, thirty-four thousand, three hundred seventy-seven".