101110555991 has 2 divisors, whose sum is σ = 101110555992. Its totient is φ = 101110555990.

The previous prime is 101110555943. The next prime is 101110556017. The reversal of 101110555991 is 199555011101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101110555991 - 2³⁰ = 100036814167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101110555391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555277995 + 50555277996.

It is an arithmetic number, because the mean of its divisors is an integer number (50555277996).

Almost surely, 2^101110555991 is an apocalyptic number.

101110555991 is a deficient number, since it is larger than the sum of its proper divisors (1).

101110555991 is an equidigital number, since it uses as much as digits as its factorization.

101110555991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10125, while the sum is 38.

The spelling of 101110555991 in words is "one hundred one billion, one hundred ten million, five hundred fifty-five thousand, nine hundred ninety-one".