12415531321 has 8 divisors (see below), whose sum is σ = 12604019904. Its totient is φ = 12228384720.

The previous prime is 12415531319. The next prime is 12415531339. The reversal of 12415531321 is 12313551421.

12415531321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12415531321 - 2¹ = 12415531319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12415531321.

It is not an unprimeable number, because it can be changed into a prime (12415531351) 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, 316845 + ... + 353866.

It is an arithmetic number, because the mean of its divisors is an integer number (1575502488).

Almost surely, 2^12415531321 is an apocalyptic number.

It is an amenable number.

12415531321 is a deficient number, since it is larger than the sum of its proper divisors (188488583).

12415531321 is a wasteful number, since it uses less digits than its factorization.

12415531321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670991.

The product of its digits is 3600, while the sum is 28.

The spelling of 12415531321 in words is "twelve billion, four hundred fifteen million, five hundred thirty-one thousand, three hundred twenty-one".