101020010173 has 2 divisors, whose sum is σ = 101020010174. Its totient is φ = 101020010172.

The previous prime is 101020010159. The next prime is 101020010219. The reversal of 101020010173 is 371010020101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89112399289 + 11907610884 = 298517^2 + 109122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101020010173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020010573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510005086 + 50510005087.

It is an arithmetic number, because the mean of its divisors is an integer number (50510005087).

Almost surely, 2^101020010173 is an apocalyptic number.

It is an amenable number.

101020010173 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020010173 is an equidigital number, since it uses as much as digits as its factorization.

101020010173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

Adding to 101020010173 its reverse (371010020101), we get a palindrome (472030030274).

The spelling of 101020010173 in words is "one hundred one billion, twenty million, ten thousand, one hundred seventy-three".