12013017 has 4 divisors (see below), whose sum is σ = 16017360. Its totient is φ = 8008676.

The previous prime is 12013013. The next prime is 12013019. The reversal of 12013017 is 71031021.

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: 71031021 = 3 ⋅23677007.

It is a cyclic number.

It is not a de Polignac number, because 12013017 - 2² = 12013013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012987 and 12013005.

It is not an unprimeable number, because it can be changed into a prime (12013013) 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, 2002167 + ... + 2002172.

It is an arithmetic number, because the mean of its divisors is an integer number (4004340).

Almost surely, 2^12013017 is an apocalyptic number.

It is an amenable number.

12013017 is a deficient number, since it is larger than the sum of its proper divisors (4004343).

12013017 is an equidigital number, since it uses as much as digits as its factorization.

12013017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004342.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 12013017 is about 3465.9799480089. The cubic root of 12013017 is about 229.0256005144.

Adding to 12013017 its reverse (71031021), we get a palindrome (83044038).

The spelling of 12013017 in words is "twelve million, thirteen thousand, seventeen".