13320023 has 4 divisors (see below), whose sum is σ = 13362360. Its totient is φ = 13277688.

The previous prime is 13320011. The next prime is 13320029. The reversal of 13320023 is 32002331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32002331 = 383 ⋅83557.

It is a cyclic number.

It is not a de Polignac number, because 13320023 - 2¹⁶ = 13254487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320029) 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, 20693 + ... + 21326.

It is an arithmetic number, because the mean of its divisors is an integer number (3340590).

Almost surely, 2^13320023 is an apocalyptic number.

13320023 is a deficient number, since it is larger than the sum of its proper divisors (42337).

13320023 is an equidigital number, since it uses as much as digits as its factorization.

13320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42336.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 13320023 is about 3649.6606691582. The cubic root of 13320023 is about 237.0472883024.

Adding to 13320023 its reverse (32002331), we get a palindrome (45322354).

The spelling of 13320023 in words is "thirteen million, three hundred twenty thousand, twenty-three".