13173226313 has 4 divisors (see below), whose sum is σ = 14186551428. Its totient is φ = 12159901200.

The previous prime is 13173226289. The next prime is 13173226321. The reversal of 13173226313 is 31362237131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31362237131 = 59497 ⋅527123.

It can be written as a sum of positive squares in 2 ways, for example, as 8094241024 + 5078985289 = 89968^2 + 71267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13173226313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13173226313.

It is not an unprimeable number, because it can be changed into a prime (13173226013) 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, 506662538 + ... + 506662563.

It is an arithmetic number, because the mean of its divisors is an integer number (3546637857).

Almost surely, 2^13173226313 is an apocalyptic number.

13173226313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13173226313 is a deficient number, since it is larger than the sum of its proper divisors (1013325115).

13173226313 is a wasteful number, since it uses less digits than its factorization.

13173226313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013325114.

The product of its digits is 13608, while the sum is 32.

The spelling of 13173226313 in words is "thirteen billion, one hundred seventy-three million, two hundred twenty-six thousand, three hundred thirteen".