12321013320530 has 32 divisors (see below), whose sum is σ = 22250809493424. Its totient is φ = 4912189341696.

The previous prime is 12321013320523. The next prime is 12321013320571. The reversal of 12321013320530 is 3502331012321.

It can be written as a sum of positive squares in 8 ways, for example, as 2981088855889 + 9339924464641 = 1726583^2 + 3056129^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12321013320530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33473852 + ... + 33839928.

Almost surely, 2^{12321013320530} is an apocalyptic number.

12321013320530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321013320530 is a deficient number, since it is larger than the sum of its proper divisors (9929796172894).

12321013320530 is a wasteful number, since it uses less digits than its factorization.

12321013320530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377150.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 12321013320530 its reverse (3502331012321), we get a palindrome (15823344332851).

The spelling of 12321013320530 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty thousand, five hundred thirty".