102120030000 has 150 divisors (see below), whose sum is σ = 357128810324. Its totient is φ = 27231984000.

The previous prime is 102120029989. The next prime is 102120030031. The reversal of 102120030000 is 30021201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (150).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 477334 + ... + 657333.

Almost surely, 2^102120030000 is an apocalyptic number.

102120030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120030000 is an abundant number, since it is smaller than the sum of its proper divisors (255008780324).

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

102120030000 is a wasteful number, since it uses less digits than its factorization.

102120030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134701 (or 1134677 counting only the distinct ones).

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

Adding to 102120030000 its reverse (30021201), we get a palindrome (102150051201).

The spelling of 102120030000 in words is "one hundred two billion, one hundred twenty million, thirty thousand".