102321312112 has 40 divisors (see below), whose sum is σ = 198696313872. Its totient is φ = 51044966400.

The previous prime is 102321312073. The next prime is 102321312131. The reversal of 102321312112 is 211213123201.

It is a self number, because there is not a number n which added to its sum of digits gives 102321312112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20376162 + ... + 20381182.

Almost surely, 2^102321312112 is an apocalyptic number.

It is an amenable number.

102321312112 is a deficient number, since it is larger than the sum of its proper divisors (96375001760).

102321312112 is a wasteful number, since it uses less digits than its factorization.

102321312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657 (or 7651 counting only the distinct ones).

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

Adding to 102321312112 its reverse (211213123201), we get a palindrome (313534435313).

The spelling of 102321312112 in words is "one hundred two billion, three hundred twenty-one million, three hundred twelve thousand, one hundred twelve".