311303302102 has 16 divisors (see below), whose sum is σ = 508933298160. Its totient is φ = 141947380512.

The previous prime is 311303302069. The next prime is 311303302159. The reversal of 311303302102 is 201203303113.

It is a self number, because there is not a number n which added to its sum of digits gives 311303302102.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 72125577 + ... + 72129892.

It is an arithmetic number, because the mean of its divisors is an integer number (31808331135).

Almost surely, 2^311303302102 is an apocalyptic number.

311303302102 is a deficient number, since it is larger than the sum of its proper divisors (197629996058).

311303302102 is a wasteful number, since it uses less digits than its factorization.

311303302102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144255567.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311303302102 its reverse (201203303113), we get a palindrome (512506605215).

The spelling of 311303302102 in words is "three hundred eleven billion, three hundred three million, three hundred two thousand, one hundred two".