13412320357 has 6 divisors (see below), whose sum is σ = 14247690098. Its totient is φ = 12623360064.

The previous prime is 13412320331. The next prime is 13412320367. The reversal of 13412320357 is 75302321431.

It can be written as a sum of positive squares in 3 ways, for example, as 8856880321 + 4555440036 = 94111^2 + 67494^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13412320357 is a prime.

It is a super-3 number, since 3×13412320357³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412320367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23204418 + ... + 23204995.

Almost surely, 2^13412320357 is an apocalyptic number.

13412320357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13412320357 is a deficient number, since it is larger than the sum of its proper divisors (835369741).

13412320357 is an equidigital number, since it uses as much as digits as its factorization.

13412320357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46409447 (or 46409430 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 13412320357 its reverse (75302321431), we get a palindrome (88714641788).

The spelling of 13412320357 in words is "thirteen billion, four hundred twelve million, three hundred twenty thousand, three hundred fifty-seven".