12103631 has 2 divisors, whose sum is σ = 12103632. Its totient is φ = 12103630.

The previous prime is 12103613. The next prime is 12103639. The reversal of 12103631 is 13630121.

Together with previous prime (12103613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12103631 - 2¹⁴ = 12087247 is a prime.

It is a super-2 number, since 2×12103631² = 292995766768322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051815 + 6051816.

It is an arithmetic number, because the mean of its divisors is an integer number (6051816).

Almost surely, 2^12103631 is an apocalyptic number.

12103631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103631 is an equidigital number, since it uses as much as digits as its factorization.

12103631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 12103631 is about 3479.0273065902. The cubic root of 12103631 is about 229.6000041986.

Adding to 12103631 its reverse (13630121), we get a palindrome (25733752).

The spelling of 12103631 in words is "twelve million, one hundred three thousand, six hundred thirty-one".