13011223361 has 2 divisors, whose sum is σ = 13011223362. Its totient is φ = 13011223360.

The previous prime is 13011223319. The next prime is 13011223363. The reversal of 13011223361 is 16332211031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12436710400 + 574512961 = 111520^2 + 23969^2 .

It is an emirp because it is prime and its reverse (16332211031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13011223361 - 2²⁶ = 12944114497 is a prime.

Together with 13011223363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13011223363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505611680 + 6505611681.

It is an arithmetic number, because the mean of its divisors is an integer number (6505611681).

Almost surely, 2^13011223361 is an apocalyptic number.

It is an amenable number.

13011223361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011223361 is an equidigital number, since it uses as much as digits as its factorization.

13011223361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13011223361 its reverse (16332211031), we get a palindrome (29343434392).

The spelling of 13011223361 in words is "thirteen billion, eleven million, two hundred twenty-three thousand, three hundred sixty-one".