12023319 has 64 divisors (see below), whose sum is σ = 21823488. Its totient is φ = 5702400.

The previous prime is 12023317. The next prime is 12023329. The reversal of 12023319 is 91332021.

It is a happy number.

It is not a de Polignac number, because 12023319 - 2¹ = 12023317 is a prime.

It is a super-2 number, since 2×12023319² = 289120399551522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12023295 and 12023304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164667 + ... + 164739.

It is an arithmetic number, because the mean of its divisors is an integer number (340992).

Almost surely, 2^12023319 is an apocalyptic number.

12023319 is a deficient number, since it is larger than the sum of its proper divisors (9800169).

12023319 is a wasteful number, since it uses less digits than its factorization.

12023319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 12023319 is about 3467.4657893049. The cubic root of 12023319 is about 229.0910502845.

The spelling of 12023319 in words is "twelve million, twenty-three thousand, three hundred nineteen".