101100202119989 has 2 divisors, whose sum is σ = 101100202119990. Its totient is φ = 101100202119988.

The previous prime is 101100202119977. The next prime is 101100202120033. The reversal of 101100202119989 is 989911202001101.

It is a happy number.

It is an a-pointer prime, because the next prime (101100202120033) can be obtained adding 101100202119989 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63430743492964 + 37669458627025 = 7964342^2 + 6137545^2 .

It is a cyclic number.

It is not a de Polignac number, because 101100202119989 - 2³² = 101095907152693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101100202109989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550101059994 + 50550101059995.

It is an arithmetic number, because the mean of its divisors is an integer number (50550101059995).

Almost surely, 2^{101100202119989} is an apocalyptic number.

It is an amenable number.

101100202119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100202119989 is an equidigital number, since it uses as much as digits as its factorization.

101100202119989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 101100202119989 in words is "one hundred one trillion, one hundred billion, two hundred two million, one hundred nineteen thousand, nine hundred eighty-nine".