101112310991 has 2 divisors, whose sum is σ = 101112310992. Its totient is φ = 101112310990.

The previous prime is 101112310961. The next prime is 101112311059. The reversal of 101112310991 is 199013211101.

It is a weak prime.

It is an emirp because it is prime and its reverse (199013211101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101112310991 - 2⁶ = 101112310927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101112310931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50556155495 + 50556155496.

It is an arithmetic number, because the mean of its divisors is an integer number (50556155496).

Almost surely, 2^101112310991 is an apocalyptic number.

101112310991 is a deficient number, since it is larger than the sum of its proper divisors (1).

101112310991 is an equidigital number, since it uses as much as digits as its factorization.

101112310991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 101112310991 in words is "one hundred one billion, one hundred twelve million, three hundred ten thousand, nine hundred ninety-one".