12321653 has 2 divisors, whose sum is σ = 12321654. Its totient is φ = 12321652.

The previous prime is 12321649. The next prime is 12321679. The reversal of 12321653 is 35612321.

12321653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9690769 + 2630884 = 3113^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321653 - 2² = 12321649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160826 + 6160827.

It is an arithmetic number, because the mean of its divisors is an integer number (6160827).

Almost surely, 2^12321653 is an apocalyptic number.

It is an amenable number.

12321653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321653 is an equidigital number, since it uses as much as digits as its factorization.

12321653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 12321653 is about 3510.2212181001. The cubic root of 12321653 is about 230.9703990605.

Adding to 12321653 its reverse (35612321), we get a palindrome (47933974).

The spelling of 12321653 in words is "twelve million, three hundred twenty-one thousand, six hundred fifty-three".