13200320123 has 4 divisors (see below), whose sum is σ = 13976809560. Its totient is φ = 12423830688.

The previous prime is 13200320069. The next prime is 13200320141. The reversal of 13200320123 is 32102300231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32102300231 = 19 ⋅1689594749.

It is a cyclic number.

It is not a de Polignac number, because 13200320123 - 2¹² = 13200316027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 776489419 = 13200320123 / (1 + 3 + 2 + 0 + 0 + 3 + 2 + 0 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13200320143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388244693 + ... + 388244726.

It is an arithmetic number, because the mean of its divisors is an integer number (3494202390).

Almost surely, 2^13200320123 is an apocalyptic number.

13200320123 is a deficient number, since it is larger than the sum of its proper divisors (776489437).

13200320123 is an equidigital number, since it uses as much as digits as its factorization.

13200320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776489436.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13200320123 its reverse (32102300231), we get a palindrome (45302620354).

The spelling of 13200320123 in words is "thirteen billion, two hundred million, three hundred twenty thousand, one hundred twenty-three".