13123341331 has 4 divisors (see below), whose sum is σ = 13152058072. Its totient is φ = 13094624592.

The previous prime is 13123341317. The next prime is 13123341347. The reversal of 13123341331 is 13314332131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13123341331 - 2⁵ = 13123341299 is a prime.

It is a super-2 number, since 2×13123341331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123341296 and 13123341305.

It is not an unprimeable number, because it can be changed into a prime (13123341391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14357685 + ... + 14358598.

It is an arithmetic number, because the mean of its divisors is an integer number (3288014518).

Almost surely, 2^13123341331 is an apocalyptic number.

13123341331 is a deficient number, since it is larger than the sum of its proper divisors (28716741).

13123341331 is an equidigital number, since it uses as much as digits as its factorization.

13123341331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28716740.

The product of its digits is 1944, while the sum is 25.

Adding to 13123341331 its reverse (13314332131), we get a palindrome (26437673462).

The spelling of 13123341331 in words is "thirteen billion, one hundred twenty-three million, three hundred forty-one thousand, three hundred thirty-one".