311313210102 has 48 divisors (see below), whose sum is σ = 678515308848. Its totient is φ = 103155978240.

The previous prime is 311313210097. The next prime is 311313210119. The reversal of 311313210102 is 201012313113.

311313210102 is a `hidden beast` number, since 311 + 31 + 321 + 0 + 1 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 4695193 + ... + 4761035.

It is an arithmetic number, because the mean of its divisors is an integer number (14135735601).

Almost surely, 2^311313210102 is an apocalyptic number.

311313210102 is an abundant number, since it is smaller than the sum of its proper divisors (367202098746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311313210102 is a wasteful number, since it uses less digits than its factorization.

311313210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67405 (or 67402 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311313210102 its reverse (201012313113), we get a palindrome (512325523215).

The spelling of 311313210102 in words is "three hundred eleven billion, three hundred thirteen million, two hundred ten thousand, one hundred two".