12321250415 has 4 divisors (see below), whose sum is σ = 14785500504. Its totient is φ = 9857000328.

The previous prime is 12321250391. The next prime is 12321250441. The reversal of 12321250415 is 51405212321.

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

It is a cyclic number.

It is not a de Polignac number, because 12321250415 - 2¹⁶ = 12321184879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232125037 + ... + 1232125046.

It is an arithmetic number, because the mean of its divisors is an integer number (3696375126).

Almost surely, 2^12321250415 is an apocalyptic number.

12321250415 is a deficient number, since it is larger than the sum of its proper divisors (2464250089).

12321250415 is an equidigital number, since it uses as much as digits as its factorization.

12321250415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464250088.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12321250415 its reverse (51405212321), we get a palindrome (63726462736).

The spelling of 12321250415 in words is "twelve billion, three hundred twenty-one million, two hundred fifty thousand, four hundred fifteen".