12102352500 has 240 divisors, whose sum is σ = 41724144000. Its totient is φ = 2670528000.

The previous prime is 12102352487. The next prime is 12102352517. The reversal of 12102352500 is 525320121.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 79 ways as a sum of consecutive naturals, for example, 1518526 + ... + 1526474.

It is an arithmetic number, because the mean of its divisors is an integer number (173850600).

Almost surely, 2^12102352500 is an apocalyptic number.

12102352500 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 12102352500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20862072000).

12102352500 is an abundant number, since it is smaller than the sum of its proper divisors (29621791500).

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

12102352500 is a wasteful number, since it uses less digits than its factorization.

12102352500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012 (or 7995 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 12102352500 its reverse (525320121), we get a palindrome (12627672621).

The spelling of 12102352500 in words is "twelve billion, one hundred two million, three hundred fifty-two thousand, five hundred".