12901321 has 8 divisors (see below), whose sum is σ = 13498560. Its totient is φ = 12307152.

The previous prime is 12901307. The next prime is 12901327. The reversal of 12901321 is 12310921.

12901321 is digitally balanced in base 3, 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 12901321 - 2⁷ = 12901193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12901327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14590 + ... + 15448.

It is an arithmetic number, because the mean of its divisors is an integer number (1687320).

Almost surely, 2^12901321 is an apocalyptic number.

It is an amenable number.

12901321 is a deficient number, since it is larger than the sum of its proper divisors (597239).

12901321 is an equidigital number, since it uses as much as digits as its factorization.

12901321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12901321 is about 3591.8408929127. The cubic root of 12901321 is about 234.5370151137.

The spelling of 12901321 in words is "twelve million, nine hundred one thousand, three hundred twenty-one".