12105732102025 has 12 divisors (see below), whose sum is σ = 15021977587084. Its totient is φ = 9677572920000.

The previous prime is 12105732102007. The next prime is 12105732102031. The reversal of 12105732102025 is 52020123750121.

It can be written as a sum of positive squares in 6 ways, for example, as 809303549769 + 11296428552256 = 899613^2 + 3361016^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12105732102025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175283826 + ... + 175352875.

Almost surely, 2^{12105732102025} is an apocalyptic number.

It is an amenable number.

12105732102025 is a deficient number, since it is larger than the sum of its proper divisors (2916245485059).

12105732102025 is a wasteful number, since it uses less digits than its factorization.

12105732102025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350638092 (or 350638087 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 12105732102025 its reverse (52020123750121), we get a palindrome (64125855852146).

The spelling of 12105732102025 in words is "twelve trillion, one hundred five billion, seven hundred thirty-two million, one hundred two thousand, twenty-five".