12013611 has 16 divisors (see below), whose sum is σ = 17132544. Its totient is φ = 7461504.

The previous prime is 12013601. The next prime is 12013621. The reversal of 12013611 is 11631021.

12013611 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12013601) and next prime (12013621).

It is not a de Polignac number, because 12013611 - 2⁵ = 12013579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013601) 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, 4110 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (1070784).

Almost surely, 2^12013611 is an apocalyptic number.

12013611 is a deficient number, since it is larger than the sum of its proper divisors (5118933).

12013611 is a wasteful number, since it uses less digits than its factorization.

12013611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12013611 is about 3466.0656370011. The cubic root of 12013611 is about 229.0293752799.

Adding to 12013611 its reverse (11631021), we get a palindrome (23644632).

It can be divided in two parts, 120 and 13611, that added together give a palindrome (13731).

The spelling of 12013611 in words is "twelve million, thirteen thousand, six hundred eleven".