12013001 has 24 divisors (see below), whose sum is σ = 16266432. Its totient is φ = 8632800.

The previous prime is 12012971. The next prime is 12013009. The reversal of 12013001 is 10031021.

It is not a de Polignac number, because 12013001 - 2¹⁰ = 12011977 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12013001.

It is not an unprimeable number, because it can be changed into a prime (12013009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10466 + ... + 11556.

It is an arithmetic number, because the mean of its divisors is an integer number (677768).

Almost surely, 2^12013001 is an apocalyptic number.

12013001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12013001 is a deficient number, since it is larger than the sum of its proper divisors (4253431).

12013001 is a wasteful number, since it uses less digits than its factorization.

12013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 12013001 is about 3465.9776398586. The cubic root of 12013001 is about 229.0254988355.

Adding to 12013001 its reverse (10031021), we get a palindrome (22044022).

The spelling of 12013001 in words is "twelve million, thirteen thousand, one".