12051012215013 has 4 divisors (see below), whose sum is σ = 16068016286688. Its totient is φ = 8034008143340.

The previous prime is 12051012215009. The next prime is 12051012215017. The reversal of 12051012215013 is 31051221015021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12051012215009) and next prime (12051012215017).

It is a cyclic number.

It is not a de Polignac number, because 12051012215013 - 2² = 12051012215009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051012215017) 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, 2008502035833 + ... + 2008502035838.

It is an arithmetic number, because the mean of its divisors is an integer number (4017004071672).

Almost surely, 2^{12051012215013} is an apocalyptic number.

It is an amenable number.

12051012215013 is a deficient number, since it is larger than the sum of its proper divisors (4017004071675).

12051012215013 is an equidigital number, since it uses as much as digits as its factorization.

12051012215013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017004071674.

The product of its (nonzero) digits is 600, while the sum is 24.

The spelling of 12051012215013 in words is "twelve trillion, fifty-one billion, twelve million, two hundred fifteen thousand, thirteen".