311112223102 has 16 divisors (see below), whose sum is σ = 494131899312. Its totient is φ = 146402052480.

The previous prime is 311112223099. The next prime is 311112223109. The reversal of 311112223102 is 201322211113.

It is a self number, because there is not a number n which added to its sum of digits gives 311112223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311112223109) 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, 1632952 + ... + 1813492.

It is an arithmetic number, because the mean of its divisors is an integer number (30883243707).

Almost surely, 2^311112223102 is an apocalyptic number.

311112223102 is a deficient number, since it is larger than the sum of its proper divisors (183019676210).

311112223102 is a wasteful number, since it uses less digits than its factorization.

311112223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231243.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 311112223102 its reverse (201322211113), we get a palindrome (512434434215).

The spelling of 311112223102 in words is "three hundred eleven billion, one hundred twelve million, two hundred twenty-three thousand, one hundred two".