100131211 has 2 divisors, whose sum is σ = 100131212. Its totient is φ = 100131210.

The previous prime is 100131193. The next prime is 100131223. The reversal of 100131211 is 112131001.

It is a strong prime.

It is an emirp because it is prime and its reverse (112131001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100131211 - 2¹⁵ = 100098443 is a prime.

It is not a weakly prime, because it can be changed into another prime (100131281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50065605 + 50065606.

It is an arithmetic number, because the mean of its divisors is an integer number (50065606).

Almost surely, 2^100131211 is an apocalyptic number.

100131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

100131211 is an equidigital number, since it uses as much as digits as its factorization.

100131211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 100131211 is about 10006.5583993699. The cubic root of 100131211 is about 464.3618038066.

Adding to 100131211 its reverse (112131001), we get a palindrome (212262212).

The spelling of 100131211 in words is "one hundred million, one hundred thirty-one thousand, two hundred eleven".