12005231513 has 8 divisors (see below), whose sum is σ = 13867005600. Its totient is φ = 10271855680.

The previous prime is 12005231507. The next prime is 12005231519. The reversal of 12005231513 is 31513250021.

It is a happy number.

12005231513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12005231507) and next prime (12005231519).

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 12005231513 - 2²⁴ = 11988454297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12005231519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32099363 + ... + 32099736.

It is an arithmetic number, because the mean of its divisors is an integer number (1733375700).

Almost surely, 2^12005231513 is an apocalyptic number.

It is an amenable number.

12005231513 is a deficient number, since it is larger than the sum of its proper divisors (1861774087).

12005231513 is a wasteful number, since it uses less digits than its factorization.

12005231513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64199127.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12005231513 its reverse (31513250021), we get a palindrome (43518481534).

The spelling of 12005231513 in words is "twelve billion, five million, two hundred thirty-one thousand, five hundred thirteen".