311201104231144 has 8 divisors (see below), whose sum is σ = 583502070433410. Its totient is φ = 155600552115568.

The previous prime is 311201104231141. The next prime is 311201104231177. The reversal of 311201104231144 is 441132401102113.

It can be written as a sum of positive squares in only one way, i.e., 227179351900900 + 84021752330244 = 15072470^2 + 9166338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×311201104231144² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311201104231141) 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, 19450069014439 + ... + 19450069014454.

Almost surely, 2^{311201104231144} is an apocalyptic number.

It is an amenable number.

311201104231144 is a deficient number, since it is larger than the sum of its proper divisors (272300966202266).

311201104231144 is a wasteful number, since it uses less digits than its factorization.

311201104231144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38900138028899 (or 38900138028895 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 311201104231144 its reverse (441132401102113), we get a palindrome (752333505333257).

The spelling of 311201104231144 in words is "three hundred eleven trillion, two hundred one billion, one hundred four million, two hundred thirty-one thousand, one hundred forty-four".