13120323 has 4 divisors (see below), whose sum is σ = 17493768. Its totient is φ = 8746880.

The previous prime is 13120321. The next prime is 13120337. The reversal of 13120323 is 32302131.

13120323 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13120323 - 2¹ = 13120321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13120321) 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, 2186718 + ... + 2186723.

It is an arithmetic number, because the mean of its divisors is an integer number (4373442).

Almost surely, 2^13120323 is an apocalyptic number.

13120323 is a deficient number, since it is larger than the sum of its proper divisors (4373445).

13120323 is an equidigital number, since it uses as much as digits as its factorization.

13120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373444.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13120323 is about 3622.1986417092. The cubic root of 13120323 is about 235.8566770779.

Adding to 13120323 its reverse (32302131), we get a palindrome (45422454).

The spelling of 13120323 in words is "thirteen million, one hundred twenty thousand, three hundred twenty-three".