311643985483 has 16 divisors (see below), whose sum is σ = 323076124800. Its totient is φ = 300258161280.

The previous prime is 311643985481. The next prime is 311643985487. The reversal of 311643985483 is 384589346113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311643985483 - 2¹ = 311643985481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311643985481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39349998 + ... + 39357916.

It is an arithmetic number, because the mean of its divisors is an integer number (20192257800).

Almost surely, 2^311643985483 is an apocalyptic number.

311643985483 is a deficient number, since it is larger than the sum of its proper divisors (11432139317).

311643985483 is a wasteful number, since it uses less digits than its factorization.

311643985483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10662.

The product of its digits is 7464960, while the sum is 55.

The spelling of 311643985483 in words is "three hundred eleven billion, six hundred forty-three million, nine hundred eighty-five thousand, four hundred eighty-three".