100203032309 has 2 divisors, whose sum is σ = 100203032310. Its totient is φ = 100203032308.

The previous prime is 100203032287. The next prime is 100203032327. The reversal of 100203032309 is 903230302001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72319042084 + 27883990225 = 268922^2 + 166985^2 .

It is a cyclic number.

It is not a de Polignac number, because 100203032309 - 2²⁰ = 100201983733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100203032339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101516154 + 50101516155.

It is an arithmetic number, because the mean of its divisors is an integer number (50101516155).

Almost surely, 2^100203032309 is an apocalyptic number.

It is an amenable number.

100203032309 is a deficient number, since it is larger than the sum of its proper divisors (1).

100203032309 is an equidigital number, since it uses as much as digits as its factorization.

100203032309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The spelling of 100203032309 in words is "one hundred billion, two hundred three million, thirty-two thousand, three hundred nine".