10231113203209 has 2 divisors, whose sum is σ = 10231113203210. Its totient is φ = 10231113203208.

The previous prime is 10231113203197. The next prime is 10231113203279. The reversal of 10231113203209 is 90230231113201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9745185705984 + 485927497225 = 3121728^2 + 697085^2 .

It is a cyclic number.

It is not a de Polignac number, because 10231113203209 - 2⁵ = 10231113203177 is a prime.

It is not a weakly prime, because it can be changed into another prime (10231113203279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115556601604 + 5115556601605.

It is an arithmetic number, because the mean of its divisors is an integer number (5115556601605).

Almost surely, 2^{10231113203209} is an apocalyptic number.

It is an amenable number.

10231113203209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231113203209 is an equidigital number, since it uses as much as digits as its factorization.

10231113203209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 10231113203209 in words is "ten trillion, two hundred thirty-one billion, one hundred thirteen million, two hundred three thousand, two hundred nine".