10120020173 has 2 divisors, whose sum is σ = 10120020174. Its totient is φ = 10120020172.

The previous prime is 10120020133. The next prime is 10120020193. The reversal of 10120020173 is 37102002101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10087791844 + 32228329 = 100438^2 + 5677^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120020173 - 2¹⁸ = 10119758029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120020133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060010086 + 5060010087.

It is an arithmetic number, because the mean of its divisors is an integer number (5060010087).

Almost surely, 2^10120020173 is an apocalyptic number.

It is an amenable number.

10120020173 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120020173 is an equidigital number, since it uses as much as digits as its factorization.

10120020173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 10120020173 its reverse (37102002101), we get a palindrome (47222022274).

The spelling of 10120020173 in words is "ten billion, one hundred twenty million, twenty thousand, one hundred seventy-three".