13132123321 has 2 divisors, whose sum is σ = 13132123322. Its totient is φ = 13132123320.

The previous prime is 13132123289. The next prime is 13132123327. The reversal of 13132123321 is 12332123131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8110983721 + 5021139600 = 90061^2 + 70860^2 .

It is a cyclic number.

It is not a de Polignac number, because 13132123321 - 2⁵ = 13132123289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13132123292 and 13132123301.

It is not a weakly prime, because it can be changed into another prime (13132123327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6566061660 + 6566061661.

It is an arithmetic number, because the mean of its divisors is an integer number (6566061661).

Almost surely, 2^13132123321 is an apocalyptic number.

It is an amenable number.

13132123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13132123321 is an equidigital number, since it uses as much as digits as its factorization.

13132123321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 13132123321 its reverse (12332123131), we get a palindrome (25464246452).

The spelling of 13132123321 in words is "thirteen billion, one hundred thirty-two million, one hundred twenty-three thousand, three hundred twenty-one".