13020323 has 4 divisors (see below), whose sum is σ = 13586448. Its totient is φ = 12454200.

The previous prime is 13020307. The next prime is 13020331. The reversal of 13020323 is 32302031.

13020323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32302031 = 31 ⋅1042001.

It is a cyclic number.

It is not a de Polignac number, because 13020323 - 2⁴ = 13020307 is a prime.

It is a super-2 number, since 2×13020323² = 339057622048658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020298 and 13020307.

It is not an unprimeable number, because it can be changed into a prime (13020373) 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, 283028 + ... + 283073.

It is an arithmetic number, because the mean of its divisors is an integer number (3396612).

Almost surely, 2^13020323 is an apocalyptic number.

13020323 is a deficient number, since it is larger than the sum of its proper divisors (566125).

13020323 is an equidigital number, since it uses as much as digits as its factorization.

13020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566124.

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

The square root of 13020323 is about 3608.3684678813. The cubic root of 13020323 is about 235.2559336310.

Adding to 13020323 its reverse (32302031), we get a palindrome (45322354).

The spelling of 13020323 in words is "thirteen million, twenty thousand, three hundred twenty-three".