12020023 has 4 divisors (see below), whose sum is σ = 12028248. Its totient is φ = 12011800.

The previous prime is 12019993. The next prime is 12020051. The reversal of 12020023 is 32002021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12019991 and 12020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020083) 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, 1261 + ... + 5062.

It is an arithmetic number, because the mean of its divisors is an integer number (3007062).

Almost surely, 2^12020023 is an apocalyptic number.

12020023 is a deficient number, since it is larger than the sum of its proper divisors (8225).

12020023 is an equidigital number, since it uses as much as digits as its factorization.

12020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 12020023 is about 3466.9904816714. The cubic root of 12020023 is about 229.0701144927.

Adding to 12020023 its reverse (32002021), we get a palindrome (44022044).

The spelling of 12020023 in words is "twelve million, twenty thousand, twenty-three".