100111010020097 has 2 divisors, whose sum is σ = 100111010020098. Its totient is φ = 100111010020096.

The previous prime is 100111010020081. The next prime is 100111010020127. The reversal of 100111010020097 is 790020010111001.

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., 79727916044401 + 20383093975696 = 8929049^2 + 4514764^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111010020097 - 2⁴ = 100111010020081 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111010020067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055505010048 + 50055505010049.

It is an arithmetic number, because the mean of its divisors is an integer number (50055505010049).

Almost surely, 2^{100111010020097} is an apocalyptic number.

It is an amenable number.

100111010020097 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111010020097 is an equidigital number, since it uses as much as digits as its factorization.

100111010020097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 23.

Adding to 100111010020097 its reverse (790020010111001), we get a palindrome (890131020131098).

The spelling of 100111010020097 in words is "one hundred trillion, one hundred eleven billion, ten million, twenty thousand, ninety-seven".