12012111010013 has 4 divisors (see below), whose sum is σ = 12012824801340. Its totient is φ = 12011397218688.

The previous prime is 12012111009967. The next prime is 12012111010021. The reversal of 12012111010013 is 31001011121021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 561859682329 + 11450251327684 = 749573^2 + 3383822^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012111010013 - 2³⁸ = 11737233103069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012111010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012111060013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356870420 + ... + 356904077.

It is an arithmetic number, because the mean of its divisors is an integer number (3003206200335).

Almost surely, 2^{12012111010013} is an apocalyptic number.

It is an amenable number.

12012111010013 is a deficient number, since it is larger than the sum of its proper divisors (713791327).

12012111010013 is an equidigital number, since it uses as much as digits as its factorization.

12012111010013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713791326.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12012111010013 its reverse (31001011121021), we get a palindrome (43013122131034).

The spelling of 12012111010013 in words is "twelve trillion, twelve billion, one hundred eleven million, ten thousand, thirteen".