13323126261 has 4 divisors (see below), whose sum is σ = 17764168352. Its totient is φ = 8882084172.

The previous prime is 13323126251. The next prime is 13323126301. The reversal of 13323126261 is 16262132331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13323126261 - 2⁶ = 13323126197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323126221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220521041 + ... + 2220521046.

It is an arithmetic number, because the mean of its divisors is an integer number (4441042088).

Almost surely, 2^13323126261 is an apocalyptic number.

It is an amenable number.

13323126261 is a deficient number, since it is larger than the sum of its proper divisors (4441042091).

13323126261 is an equidigital number, since it uses as much as digits as its factorization.

13323126261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441042090.

The product of its digits is 7776, while the sum is 30.

Adding to 13323126261 its reverse (16262132331), we get a palindrome (29585258592).

The spelling of 13323126261 in words is "thirteen billion, three hundred twenty-three million, one hundred twenty-six thousand, two hundred sixty-one".