311053213444 has 24 divisors (see below), whose sum is σ = 548431198560. Its totient is φ = 154359061056.

The previous prime is 311053213439. The next prime is 311053213447. The reversal of 311053213444 is 444312350113.

It is a super-2 number, since 2×311053213444² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311053213447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675967 + ... + 2789785.

It is an arithmetic number, because the mean of its divisors is an integer number (22851299940).

Almost surely, 2^311053213444 is an apocalyptic number.

It is an amenable number.

311053213444 is a deficient number, since it is larger than the sum of its proper divisors (237377985116).

311053213444 is a wasteful number, since it uses less digits than its factorization.

311053213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118947 (or 118945 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 311053213444 its reverse (444312350113), we get a palindrome (755365563557).

The spelling of 311053213444 in words is "three hundred eleven billion, fifty-three million, two hundred thirteen thousand, four hundred forty-four".