100000231 has 2 divisors, whose sum is σ = 100000232. Its totient is φ = 100000230.

The previous prime is 100000223. The next prime is 100000237. The reversal of 100000231 is 132000001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100000231 - 2³ = 100000223 is a prime.

It is a super-2 number, since 2×100000231² = 20000092400106722, which contains 22 as substring.

100000231 is a modest number, since divided by 231 gives 100 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000115 + 50000116.

It is an arithmetic number, because the mean of its divisors is an integer number (50000116).

Almost surely, 2^100000231 is an apocalyptic number.

100000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000231 is an equidigital number, since it uses as much as digits as its factorization.

100000231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 100000231 is about 10000.0115499933. The cubic root of 100000231 is about 464.1592407633.

Adding to 100000231 its reverse (132000001), we get a palindrome (232000232).

The spelling of 100000231 in words is "one hundred million, two hundred thirty-one", and thus it is an aban number.