102120300000 has 216 divisors, whose sum is σ = 362985720552. Its totient is φ = 27231840000.

The previous prime is 102120299999. The next prime is 102120300031. The reversal of 102120300000 is 3021201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 35 ways as a sum of consecutive naturals, for example, 843267 + ... + 956733.

It is an arithmetic number, because the mean of its divisors is an integer number (1680489447).

Almost surely, 2^102120300000 is an apocalyptic number.

102120300000 is a gapful number since it is divisible by the number (10) 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 102120300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181492860276).

102120300000 is an abundant number, since it is smaller than the sum of its proper divisors (260865420552).

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

102120300000 is an equidigital number, since it uses as much as digits as its factorization.

102120300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113508 (or 113477 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 102120300000 its reverse (3021201), we get a palindrome (102123321201).

The spelling of 102120300000 in words is "one hundred two billion, one hundred twenty million, three hundred thousand".