12101128745 has 8 divisors (see below), whose sum is σ = 14597383680. Its totient is φ = 9630216880.

The previous prime is 12101128703. The next prime is 12101128763. The reversal of 12101128745 is 54782110121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12101128745 - 2⁸ = 12101128489 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6334715 + ... + 6336624.

It is an arithmetic number, because the mean of its divisors is an integer number (1824672960).

Almost surely, 2^12101128745 is an apocalyptic number.

It is an amenable number.

12101128745 is a deficient number, since it is larger than the sum of its proper divisors (2496254935).

12101128745 is a wasteful number, since it uses less digits than its factorization.

12101128745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12671535.

The product of its (nonzero) digits is 4480, while the sum is 32.

Adding to 12101128745 its reverse (54782110121), we get a palindrome (66883238866).

The spelling of 12101128745 in words is "twelve billion, one hundred one million, one hundred twenty-eight thousand, seven hundred forty-five".