109431211 has 2 divisors, whose sum is σ = 109431212. Its totient is φ = 109431210.

The previous prime is 109431151. The next prime is 109431221. The reversal of 109431211 is 112134901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109431211 - 2¹⁹ = 108906923 is a prime.

It is not a weakly prime, because it can be changed into another prime (109431221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54715605 + 54715606.

It is an arithmetic number, because the mean of its divisors is an integer number (54715606).

Almost surely, 2^109431211 is an apocalyptic number.

109431211 is a deficient number, since it is larger than the sum of its proper divisors (1).

109431211 is an equidigital number, since it uses as much as digits as its factorization.

109431211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 109431211 is about 10460.9373862957. The cubic root of 109431211 is about 478.3147075860.

The spelling of 109431211 in words is "one hundred nine million, four hundred thirty-one thousand, two hundred eleven".