102023312112 has 120 divisors (see below), whose sum is σ = 286899929888. Its totient is φ = 33844262400.

The previous prime is 102023312087. The next prime is 102023312123. The reversal of 102023312112 is 211213320201.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29056437 + ... + 29059947.

Almost surely, 2^102023312112 is an apocalyptic number.

102023312112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102023312112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143449964944).

102023312112 is an abundant number, since it is smaller than the sum of its proper divisors (184876617776).

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

102023312112 is a wasteful number, since it uses less digits than its factorization.

102023312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102023312112 its reverse (211213320201), we get a palindrome (313236632313).

The spelling of 102023312112 in words is "one hundred two billion, twenty-three million, three hundred twelve thousand, one hundred twelve".