13020393 has 4 divisors (see below), whose sum is σ = 17360528. Its totient is φ = 8680260.

The previous prime is 13020383. The next prime is 13020431. The reversal of 13020393 is 39302031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39302031 = 3 ⋅13100677.

It is not a de Polignac number, because 13020393 - 2⁵ = 13020361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170063 + ... + 2170068.

It is an arithmetic number, because the mean of its divisors is an integer number (4340132).

Almost surely, 2^13020393 is an apocalyptic number.

It is an amenable number.

13020393 is a deficient number, since it is larger than the sum of its proper divisors (4340135).

13020393 is an equidigital number, since it uses as much as digits as its factorization.

13020393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340134.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 13020393 is about 3608.3781675429. The cubic root of 13020393 is about 235.2563552254.

The spelling of 13020393 in words is "thirteen million, twenty thousand, three hundred ninety-three".