10230231009991 has 2 divisors, whose sum is σ = 10230231009992. Its totient is φ = 10230231009990.

The previous prime is 10230231009989. The next prime is 10230231010009. The reversal of 10230231009991 is 19990013203201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10230231009991 - 2¹ = 10230231009989 is a prime.

Together with 10230231009989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10230231009091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115115504995 + 5115115504996.

It is an arithmetic number, because the mean of its divisors is an integer number (5115115504996).

Almost surely, 2^{10230231009991} is an apocalyptic number.

10230231009991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10230231009991 is an equidigital number, since it uses as much as digits as its factorization.

10230231009991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 40.

The spelling of 10230231009991 in words is "ten trillion, two hundred thirty billion, two hundred thirty-one million, nine thousand, nine hundred ninety-one".