10181231 has 2 divisors, whose sum is σ = 10181232. Its totient is φ = 10181230.

The previous prime is 10181219. The next prime is 10181251. The reversal of 10181231 is 13218101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10181231 - 2⁶ = 10181167 is a prime.

It is a super-2 number, since 2×10181231² = 207314929350722, 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 (10181201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090615 + 5090616.

It is an arithmetic number, because the mean of its divisors is an integer number (5090616).

Almost surely, 2^10181231 is an apocalyptic number.

10181231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10181231 is an equidigital number, since it uses as much as digits as its factorization.

10181231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 10181231 is about 3190.8041306229. The cubic root of 10181231 is about 216.7371859868.

Adding to 10181231 its reverse (13218101), we get a palindrome (23399332).

The spelling of 10181231 in words is "ten million, one hundred eighty-one thousand, two hundred thirty-one".