1000020423601 has 2 divisors, whose sum is σ = 1000020423602. Its totient is φ = 1000020423600.

The previous prime is 1000020423559. The next prime is 1000020423631. The reversal of 1000020423601 is 1063240200001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845884878400 + 154135545201 = 919720^2 + 392601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000020423601 - 2¹⁷ = 1000020292529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000020423631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010211800 + 500010211801.

It is an arithmetic number, because the mean of its divisors is an integer number (500010211801).

Almost surely, 2^{1000020423601} is an apocalyptic number.

It is an amenable number.

1000020423601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000020423601 is an equidigital number, since it uses as much as digits as its factorization.

1000020423601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1000020423601 its reverse (1063240200001), we get a palindrome (2063260623602).

The spelling of 1000020423601 in words is "one trillion, twenty million, four hundred twenty-three thousand, six hundred one".