109999995997 has 2 divisors, whose sum is σ = 109999995998. Its totient is φ = 109999995996.

The previous prime is 109999995947. The next prime is 109999996021. The reversal of 109999995997 is 799599999901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109838553561 + 161442436 = 331419^2 + 12706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109999995997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109999995947) 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, 54999997998 + 54999997999.

It is an arithmetic number, because the mean of its divisors is an integer number (54999997999).

Almost surely, 2^109999995997 is an apocalyptic number.

It is an amenable number.

109999995997 is a deficient number, since it is larger than the sum of its proper divisors (1).

109999995997 is an equidigital number, since it uses as much as digits as its factorization.

109999995997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1506635235, while the sum is 85.

The spelling of 109999995997 in words is "one hundred nine billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, nine hundred ninety-seven".