12919323 has 4 divisors (see below), whose sum is σ = 17225768. Its totient is φ = 8612880.

The previous prime is 12919301. The next prime is 12919339. The reversal of 12919323 is 32391921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32391921 = 3 ⋅10797307.

It is not a de Polignac number, because 12919323 - 2⁹ = 12918811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12919523) 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, 2153218 + ... + 2153223.

It is an arithmetic number, because the mean of its divisors is an integer number (4306442).

Almost surely, 2^12919323 is an apocalyptic number.

12919323 is a deficient number, since it is larger than the sum of its proper divisors (4306445).

12919323 is an equidigital number, since it uses as much as digits as its factorization.

12919323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306444.

The product of its digits is 2916, while the sum is 30.

The square root of 12919323 is about 3594.3459766695. The cubic root of 12919323 is about 234.6460523476.

The spelling of 12919323 in words is "twelve million, nine hundred nineteen thousand, three hundred twenty-three".