311448310322 has 6 divisors (see below), whose sum is σ = 467173649343. Its totient is φ = 155723760542.

The previous prime is 311448310321. The next prime is 311448310333. The reversal of 311448310322 is 223013844113.

It can be written as a sum of positive squares in only one way, i.e., 155724155161 + 155724155161 = 394619^2 + 394619^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=394619.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311448310321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 591929 + ... + 986547.

Almost surely, 2^311448310322 is an apocalyptic number.

311448310322 is a deficient number, since it is larger than the sum of its proper divisors (155725339021).

311448310322 is an frugal number, since it uses more digits than its factorization.

311448310322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789240 (or 394621 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Multiplying 311448310322 by its sum of digits (32), we get a square (9966345930304 = 3156952²).

The spelling of 311448310322 in words is "three hundred eleven billion, four hundred forty-eight million, three hundred ten thousand, three hundred twenty-two".