12031201340321 has 2 divisors, whose sum is σ = 12031201340322. Its totient is φ = 12031201340320.

The previous prime is 12031201340237. The next prime is 12031201340329. The reversal of 12031201340321 is 12304310213021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11770999330321 + 260202010000 = 3430889^2 + 510100^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031201340321 - 2³⁰ = 12030127598497 is a prime.

It is not a weakly prime, because it can be changed into another prime (12031201340329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015600670160 + 6015600670161.

It is an arithmetic number, because the mean of its divisors is an integer number (6015600670161).

Almost surely, 2^{12031201340321} is an apocalyptic number.

It is an amenable number.

12031201340321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031201340321 is an equidigital number, since it uses as much as digits as its factorization.

12031201340321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12031201340321 its reverse (12304310213021), we get a palindrome (24335511553342).

The spelling of 12031201340321 in words is "twelve trillion, thirty-one billion, two hundred one million, three hundred forty thousand, three hundred twenty-one".