101109992909 has 2 divisors, whose sum is σ = 101109992910. Its totient is φ = 101109992908.

The previous prime is 101109992843. The next prime is 101109992923. The reversal of 101109992909 is 909299901101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90482444809 + 10627548100 = 300803^2 + 103090^2 .

It is a cyclic number.

It is not a de Polignac number, because 101109992909 - 2⁸ = 101109992653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101109992509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50554996454 + 50554996455.

It is an arithmetic number, because the mean of its divisors is an integer number (50554996455).

Almost surely, 2^101109992909 is an apocalyptic number.

It is an amenable number.

101109992909 is a deficient number, since it is larger than the sum of its proper divisors (1).

101109992909 is an equidigital number, since it uses as much as digits as its factorization.

101109992909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 101109992909 in words is "one hundred one billion, one hundred nine million, nine hundred ninety-two thousand, nine hundred nine".