13122345323405 has 8 divisors (see below), whose sum is σ = 15746906876184. Its totient is φ = 10497814600000.

The previous prime is 13122345323387. The next prime is 13122345323453. The reversal of 13122345323405 is 50432354322131.

It can be written as a sum of positive squares in 4 ways, for example, as 2350315889476 + 10772029433929 = 1533074^2 + 3282077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13122345323405 - 2⁸ = 13122345323149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6760346 + ... + 8482155.

It is an arithmetic number, because the mean of its divisors is an integer number (1968363359523).

Almost surely, 2^{13122345323405} is an apocalyptic number.

It is an amenable number.

13122345323405 is a deficient number, since it is larger than the sum of its proper divisors (2624561552779).

13122345323405 is a wasteful number, since it uses less digits than its factorization.

13122345323405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414687.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 13122345323405 its reverse (50432354322131), we get a palindrome (63554699645536).

The spelling of 13122345323405 in words is "thirteen trillion, one hundred twenty-two billion, three hundred forty-five million, three hundred twenty-three thousand, four hundred five".