20030194771 has 2 divisors, whose sum is σ = 20030194772. Its totient is φ = 20030194770.

The previous prime is 20030194753. The next prime is 20030194783. The reversal of 20030194771 is 17749103002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20030194771 - 2⁹ = 20030194259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030194721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015097385 + 10015097386.

It is an arithmetic number, because the mean of its divisors is an integer number (10015097386).

Almost surely, 2^20030194771 is an apocalyptic number.

20030194771 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030194771 is an equidigital number, since it uses as much as digits as its factorization.

20030194771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

Adding to 20030194771 its reverse (17749103002), we get a palindrome (37779297773).

The spelling of 20030194771 in words is "twenty billion, thirty million, one hundred ninety-four thousand, seven hundred seventy-one".