12023001 has 6 divisors (see below), whose sum is σ = 17366570. Its totient is φ = 8015328.

The previous prime is 12022979. The next prime is 12023003. The reversal of 12023001 is 10032021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7160976 + 4862025 = 2676^2 + 2205^2 .

It is not a de Polignac number, because 12023001 - 2⁶ = 12022937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1335889 = 12023001 / (1 + 2 + 0 + 2 + 3 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12023003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667936 + ... + 667953.

Almost surely, 2^12023001 is an apocalyptic number.

It is an amenable number.

12023001 is a deficient number, since it is larger than the sum of its proper divisors (5343569).

12023001 is a wasteful number, since it uses less digits than its factorization.

12023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335895 (or 1335892 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12023001 is about 3467.4199341874. The cubic root of 12023001 is about 229.0890305539.

Adding to 12023001 its reverse (10032021), we get a palindrome (22055022).

The spelling of 12023001 in words is "twelve million, twenty-three thousand, one".