102321310312 has 64 divisors (see below), whose sum is σ = 210056172480. Its totient is φ = 46440041472.

The previous prime is 102321310309. The next prime is 102321310327. The reversal of 102321310312 is 213013123201.

It is a self number, because there is not a number n which added to its sum of digits gives 102321310312.

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 15 ways as a sum of consecutive naturals, for example, 4119643 + ... + 4144405.

It is an arithmetic number, because the mean of its divisors is an integer number (3282127695).

Almost surely, 2^102321310312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102321310312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105028086240).

102321310312 is an abundant number, since it is smaller than the sum of its proper divisors (107734862168).

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

102321310312 is a wasteful number, since it uses less digits than its factorization.

102321310312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25442 (or 25438 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102321310312 its reverse (213013123201), we get a palindrome (315334433513).

The spelling of 102321310312 in words is "one hundred two billion, three hundred twenty-one million, three hundred ten thousand, three hundred twelve".