12163831 has 2 divisors, whose sum is σ = 12163832. Its totient is φ = 12163830.

The previous prime is 12163829. The next prime is 12163841. The reversal of 12163831 is 13836121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12163831 - 2¹ = 12163829 is a prime.

It is a super-2 number, since 2×12163831² = 295917569193122, which contains 22 as substring.

Together with 12163829, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12163796 and 12163805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12163841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081915 + 6081916.

It is an arithmetic number, because the mean of its divisors is an integer number (6081916).

Almost surely, 2^12163831 is an apocalyptic number.

12163831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12163831 is an equidigital number, since it uses as much as digits as its factorization.

12163831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 12163831 is about 3487.6684188724. The cubic root of 12163831 is about 229.9800297721.

Adding to 12163831 its reverse (13836121), we get a palindrome (25999952).

The spelling of 12163831 in words is "twelve million, one hundred sixty-three thousand, eight hundred thirty-one".