13203120361 has 2 divisors, whose sum is σ = 13203120362. Its totient is φ = 13203120360.

The previous prime is 13203120289. The next prime is 13203120383. The reversal of 13203120361 is 16302130231.

It is an a-pointer prime, because the next prime (13203120383) can be obtained adding 13203120361 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7942374400 + 5260745961 = 89120^2 + 72531^2 .

It is an emirp because it is prime and its reverse (16302130231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13203120361 is a prime.

It is not a weakly prime, because it can be changed into another prime (13203120391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601560180 + 6601560181.

It is an arithmetic number, because the mean of its divisors is an integer number (6601560181).

Almost surely, 2^13203120361 is an apocalyptic number.

It is an amenable number.

13203120361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203120361 is an equidigital number, since it uses as much as digits as its factorization.

13203120361 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 22.

Adding to 13203120361 its reverse (16302130231), we get a palindrome (29505250592).

The spelling of 13203120361 in words is "thirteen billion, two hundred three million, one hundred twenty thousand, three hundred sixty-one".