102001101997 has 2 divisors, whose sum is σ = 102001101998. Its totient is φ = 102001101996.

The previous prime is 102001101977. The next prime is 102001102031. The reversal of 102001101997 is 799101100201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84905800996 + 17095301001 = 291386^2 + 130749^2 .

It is a cyclic number.

It is not a de Polignac number, because 102001101997 - 2²⁷ = 101866884269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001101977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000550998 + 51000550999.

It is an arithmetic number, because the mean of its divisors is an integer number (51000550999).

Almost surely, 2^102001101997 is an apocalyptic number.

It is an amenable number.

102001101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001101997 is an equidigital number, since it uses as much as digits as its factorization.

102001101997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 31.

The spelling of 102001101997 in words is "one hundred two billion, one million, one hundred one thousand, nine hundred ninety-seven".