12018013 has 16 divisors (see below), whose sum is σ = 14608000. Its totient is φ = 9657792.

The previous prime is 12018011. The next prime is 12018023. The reversal of 12018013 is 31081021.

It is a cyclic number.

It is not a de Polignac number, because 12018013 - 2¹ = 12018011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14083 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (913000).

Almost surely, 2^12018013 is an apocalyptic number.

It is an amenable number.

12018013 is a deficient number, since it is larger than the sum of its proper divisors (2589987).

12018013 is a wasteful number, since it uses less digits than its factorization.

12018013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 12018013 is about 3466.7005927827. The cubic root of 12018013 is about 229.0573453381.

Adding to 12018013 its reverse (31081021), we get a palindrome (43099034).

The spelling of 12018013 in words is "twelve million, eighteen thousand, thirteen".