2001420430193 has 2 divisors, whose sum is σ = 2001420430194. Its totient is φ = 2001420430192.

The previous prime is 2001420430189. The next prime is 2001420430211. The reversal of 2001420430193 is 3910340241002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1764282597169 + 237137833024 = 1328263^2 + 486968^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001420430193 - 2² = 2001420430189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2001420430103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000710215096 + 1000710215097.

It is an arithmetic number, because the mean of its divisors is an integer number (1000710215097).

Almost surely, 2^{2001420430193} is an apocalyptic number.

It is an amenable number.

2001420430193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001420430193 is an equidigital number, since it uses as much as digits as its factorization.

2001420430193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 2001420430193 its reverse (3910340241002), we get a palindrome (5911760671195).

The spelling of 2001420430193 in words is "two trillion, one billion, four hundred twenty million, four hundred thirty thousand, one hundred ninety-three".