311103221144 has 16 divisors (see below), whose sum is σ = 583369687320. Its totient is φ = 155537971200.

The previous prime is 311103221131. The next prime is 311103221147. The reversal of 311103221144 is 441122301113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311103221147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607657 + ... + 1790744.

Almost surely, 2^311103221144 is an apocalyptic number.

It is an amenable number.

311103221144 is a deficient number, since it is larger than the sum of its proper divisors (272266466176).

311103221144 is a wasteful number, since it uses less digits than its factorization.

311103221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409850 (or 3409846 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 311103221144 its reverse (441122301113), we get a palindrome (752225522257).

The spelling of 311103221144 in words is "three hundred eleven billion, one hundred three million, two hundred twenty-one thousand, one hundred forty-four".