13122312343 has 4 divisors (see below), whose sum is σ = 14996928400. Its totient is φ = 11247696288.

The previous prime is 13122312263. The next prime is 13122312353. The reversal of 13122312343 is 34321322131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34321322131 = 23 ⋅1492231397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13122312343 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 (13122312353) 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, 937308018 + ... + 937308031.

It is an arithmetic number, because the mean of its divisors is an integer number (3749232100).

Almost surely, 2^13122312343 is an apocalyptic number.

13122312343 is a deficient number, since it is larger than the sum of its proper divisors (1874616057).

13122312343 is an equidigital number, since it uses as much as digits as its factorization.

13122312343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874616056.

The product of its digits is 2592, while the sum is 25.

Adding to 13122312343 its reverse (34321322131), we get a palindrome (47443634474).

The spelling of 13122312343 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, three hundred forty-three".