1020422432189 has 2 divisors, whose sum is σ = 1020422432190. Its totient is φ = 1020422432188.

The previous prime is 1020422432171. The next prime is 1020422432231. The reversal of 1020422432189 is 9812342240201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 731238765625 + 289183666564 = 855125^2 + 537758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020422432189 - 2¹² = 1020422428093 is a prime.

It is a super-2 number, since 2×1020422432189² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020422432149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510211216094 + 510211216095.

It is an arithmetic number, because the mean of its divisors is an integer number (510211216095).

Almost surely, 2^{1020422432189} is an apocalyptic number.

It is an amenable number.

1020422432189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020422432189 is an equidigital number, since it uses as much as digits as its factorization.

1020422432189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 1020422432189 in words is "one trillion, twenty billion, four hundred twenty-two million, four hundred thirty-two thousand, one hundred eighty-nine".