12144523201013 has 4 divisors (see below), whose sum is σ = 13879455086880. Its totient is φ = 10409591315148.

The previous prime is 12144523201007. The next prime is 12144523201043. The reversal of 12144523201013 is 31010232544121.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 12144523201013 - 2¹² = 12144523196917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144523201003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867465942923 + ... + 867465942936.

It is an arithmetic number, because the mean of its divisors is an integer number (3469863771720).

Almost surely, 2^{12144523201013} is an apocalyptic number.

It is an amenable number.

12144523201013 is a deficient number, since it is larger than the sum of its proper divisors (1734931885867).

12144523201013 is an equidigital number, since it uses as much as digits as its factorization.

12144523201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734931885866.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12144523201013 its reverse (31010232544121), we get a palindrome (43154755745134).

The spelling of 12144523201013 in words is "twelve trillion, one hundred forty-four billion, five hundred twenty-three million, two hundred one thousand, thirteen".