102120312300 has 72 divisors (see below), whose sum is σ = 295583279376. Its totient is φ = 27221468160.

The previous prime is 102120312289. The next prime is 102120312323. The reversal of 102120312300 is 3213021201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102120312300.

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, 720064 + ... + 850136.

Almost surely, 2^102120312300 is an apocalyptic number.

102120312300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120312300 is an abundant number, since it is smaller than the sum of its proper divisors (193462967076).

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

102120312300 is a wasteful number, since it uses less digits than its factorization.

102120312300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132707 (or 132700 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102120312300 its reverse (3213021201), we get a palindrome (105333333501).

The spelling of 102120312300 in words is "one hundred two billion, one hundred twenty million, three hundred twelve thousand, three hundred".