12236131 has 2 divisors, whose sum is σ = 12236132. Its totient is φ = 12236130.

The previous prime is 12236129. The next prime is 12236149. The reversal of 12236131 is 13163221.

12236131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13163221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12236131 - 2¹ = 12236129 is a prime.

It is a super-2 number, since 2×12236131² = 299445803698322, which contains 22 as substring.

Together with 12236129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12236099 and 12236108.

It is not a weakly prime, because it can be changed into another prime (12236111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118065 + 6118066.

It is an arithmetic number, because the mean of its divisors is an integer number (6118066).

Almost surely, 2^12236131 is an apocalyptic number.

12236131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12236131 is an equidigital number, since it uses as much as digits as its factorization.

12236131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 12236131 is about 3498.0181531833. The cubic root of 12236131 is about 230.4347856409.

Adding to 12236131 its reverse (13163221), we get a palindrome (25399352).

The spelling of 12236131 in words is "twelve million, two hundred thirty-six thousand, one hundred thirty-one".