13011100321 has 2 divisors, whose sum is σ = 13011100322. Its totient is φ = 13011100320.

The previous prime is 13011100301. The next prime is 13011100339. The reversal of 13011100321 is 12300111031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11445790225 + 1565310096 = 106985^2 + 39564^2 .

It is a cyclic number.

It is not a de Polignac number, because 13011100321 - 2⁹ = 13011099809 is a prime.

It is not a weakly prime, because it can be changed into another prime (13011100301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505550160 + 6505550161.

It is an arithmetic number, because the mean of its divisors is an integer number (6505550161).

Almost surely, 2^13011100321 is an apocalyptic number.

It is an amenable number.

13011100321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011100321 is an equidigital number, since it uses as much as digits as its factorization.

13011100321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13011100321 its reverse (12300111031), we get a palindrome (25311211352).

The spelling of 13011100321 in words is "thirteen billion, eleven million, one hundred thousand, three hundred twenty-one".