100231211 has 2 divisors, whose sum is σ = 100231212. Its totient is φ = 100231210.

The previous prime is 100231207. The next prime is 100231231. The reversal of 100231211 is 112132001.

It is a weak prime.

It is an emirp because it is prime and its reverse (112132001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100231211 - 2² = 100231207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100231192 and 100231201.

It is not a weakly prime, because it can be changed into another prime (100231231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50115605 + 50115606.

It is an arithmetic number, because the mean of its divisors is an integer number (50115606).

Almost surely, 2^100231211 is an apocalyptic number.

100231211 is a deficient number, since it is larger than the sum of its proper divisors (1).

100231211 is an equidigital number, since it uses as much as digits as its factorization.

100231211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 100231211 is about 10011.5538753982. The cubic root of 100231211 is about 464.5163368107.

Adding to 100231211 its reverse (112132001), we get a palindrome (212363212).

The spelling of 100231211 in words is "one hundred million, two hundred thirty-one thousand, two hundred eleven".