13223115365 has 16 divisors (see below), whose sum is σ = 16021154160. Its totient is φ = 10476311040.

The previous prime is 13223115337. The next prime is 13223115439. The reversal of 13223115365 is 56351132231.

It can be written as a sum of positive squares in 8 ways, for example, as 49126081 + 13173989284 = 7009^2 + 114778^2 .

It is not a de Polignac number, because 13223115365 - 2²⁰ = 13222066789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423817 + ... + 1433073.

It is an arithmetic number, because the mean of its divisors is an integer number (1001322135).

Almost surely, 2^13223115365 is an apocalyptic number.

It is an amenable number.

13223115365 is a deficient number, since it is larger than the sum of its proper divisors (2798038795).

13223115365 is a wasteful number, since it uses less digits than its factorization.

13223115365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11992.

The product of its digits is 16200, while the sum is 32.

Adding to 13223115365 its reverse (56351132231), we get a palindrome (69574247596).

The spelling of 13223115365 in words is "thirteen billion, two hundred twenty-three million, one hundred fifteen thousand, three hundred sixty-five".