12103641265500 has 72 divisors (see below), whose sum is σ = 38182953659760. Its totient is φ = 3227637669600.

The previous prime is 12103641265399. The next prime is 12103641265501. The reversal of 12103641265500 is 556214630121.

12103641265500 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 3 + 641 + 2 + 6 + 5 + 5 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103641265501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1344844530 + ... + 1344853529.

It is an arithmetic number, because the mean of its divisors is an integer number (530318800830).

Almost surely, 2^{12103641265500} is an apocalyptic number.

12103641265500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103641265500 is an abundant number, since it is smaller than the sum of its proper divisors (26079312394260).

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

12103641265500 is a wasteful number, since it uses less digits than its factorization.

12103641265500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689698084 (or 2689698069 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 12103641265500 its reverse (556214630121), we get a palindrome (12659855895621).

The spelling of 12103641265500 in words is "twelve trillion, one hundred three billion, six hundred forty-one million, two hundred sixty-five thousand, five hundred".