101950095209 has 2 divisors, whose sum is σ = 101950095210. Its totient is φ = 101950095208.

The previous prime is 101950095199. The next prime is 101950095311. The reversal of 101950095209 is 902590059101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59439902809 + 42510192400 = 243803^2 + 206180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101950095209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101950095809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50975047604 + 50975047605.

It is an arithmetic number, because the mean of its divisors is an integer number (50975047605).

Almost surely, 2^101950095209 is an apocalyptic number.

It is an amenable number.

101950095209 is a deficient number, since it is larger than the sum of its proper divisors (1).

101950095209 is an equidigital number, since it uses as much as digits as its factorization.

101950095209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 41.

The spelling of 101950095209 in words is "one hundred one billion, nine hundred fifty million, ninety-five thousand, two hundred nine".