1012420104173 has 2 divisors, whose sum is σ = 1012420104174. Its totient is φ = 1012420104172.

The previous prime is 1012420104161. The next prime is 1012420104211. The reversal of 1012420104173 is 3714010242101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 756694693924 + 255725410249 = 869882^2 + 505693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012420104173 - 2¹² = 1012420100077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012420404173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506210052086 + 506210052087.

It is an arithmetic number, because the mean of its divisors is an integer number (506210052087).

Almost surely, 2^{1012420104173} is an apocalyptic number.

It is an amenable number.

1012420104173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012420104173 is an equidigital number, since it uses as much as digits as its factorization.

1012420104173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 1012420104173 its reverse (3714010242101), we get a palindrome (4726430346274).

The spelling of 1012420104173 in words is "one trillion, twelve billion, four hundred twenty million, one hundred four thousand, one hundred seventy-three".