101109997 has 2 divisors, whose sum is σ = 101109998. Its totient is φ = 101109996.

The previous prime is 101109959. The next prime is 101110007. The reversal of 101109997 is 799901101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93431556 + 7678441 = 9666^2 + 2771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101109997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101109917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50554998 + 50554999.

It is an arithmetic number, because the mean of its divisors is an integer number (50554999).

Almost surely, 2^101109997 is an apocalyptic number.

It is an amenable number.

101109997 is a deficient number, since it is larger than the sum of its proper divisors (1).

101109997 is an equidigital number, since it uses as much as digits as its factorization.

101109997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 37.

The square root of 101109997 is about 10055.3466872107. The cubic root of 101109997 is about 465.8699511845.

The spelling of 101109997 in words is "one hundred one million, one hundred nine thousand, nine hundred ninety-seven".