12020113510145 has 8 divisors (see below), whose sum is σ = 15533685151656. Its totient is φ = 8876391515136.

The previous prime is 12020113510099. The next prime is 12020113510151. The reversal of 12020113510145 is 54101531102021.

It can be written as a sum of positive squares in 4 ways, for example, as 495392153281 + 11524721356864 = 703841^2 + 3394808^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12020113510145 - 2⁴⁰ = 10920601882369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92462411552 + ... + 92462411681.

It is an arithmetic number, because the mean of its divisors is an integer number (1941710643957).

Almost surely, 2^{12020113510145} is an apocalyptic number.

It is an amenable number.

12020113510145 is a deficient number, since it is larger than the sum of its proper divisors (3513571641511).

12020113510145 is a wasteful number, since it uses less digits than its factorization.

12020113510145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184924823251.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 12020113510145 its reverse (54101531102021), we get a palindrome (66121644612166).

The spelling of 12020113510145 in words is "twelve trillion, twenty billion, one hundred thirteen million, five hundred ten thousand, one hundred forty-five".