12328231513 has 8 divisors (see below), whose sum is σ = 14057531208. Its totient is φ = 10710499584.

The previous prime is 12328231511. The next prime is 12328231549. The reversal of 12328231513 is 31513282321.

It can be written as a sum of positive squares in 4 ways, for example, as 2945015824 + 9383215689 = 54268^2 + 96867^2 .

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 12328231513 - 2¹ = 12328231511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12328231511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27891706 + ... + 27892147.

It is an arithmetic number, because the mean of its divisors is an integer number (1757191401).

Almost surely, 2^12328231513 is an apocalyptic number.

12328231513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12328231513 is a deficient number, since it is larger than the sum of its proper divisors (1729299695).

12328231513 is a wasteful number, since it uses less digits than its factorization.

12328231513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55783883.

The product of its digits is 8640, while the sum is 31.

The spelling of 12328231513 in words is "twelve billion, three hundred twenty-eight million, two hundred thirty-one thousand, five hundred thirteen".