100431211 has 2 divisors, whose sum is σ = 100431212. Its totient is φ = 100431210.

The previous prime is 100431161. The next prime is 100431229. The reversal of 100431211 is 112134001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100431211 - 2⁷ = 100431083 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 100431191 and 100431200.

It is not a weakly prime, because it can be changed into another prime (100431251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50215605 + 50215606.

It is an arithmetic number, because the mean of its divisors is an integer number (50215606).

Almost surely, 2^100431211 is an apocalyptic number.

100431211 is a deficient number, since it is larger than the sum of its proper divisors (1).

100431211 is an equidigital number, since it uses as much as digits as its factorization.

100431211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100431211 is about 10021.5373571124. The cubic root of 100431211 is about 464.8250947388.

Adding to 100431211 its reverse (112134001), we get a palindrome (212565212).

The spelling of 100431211 in words is "one hundred million, four hundred thirty-one thousand, two hundred eleven".