20020202471 has 2 divisors, whose sum is σ = 20020202472. Its totient is φ = 20020202470.

The previous prime is 20020202369. The next prime is 20020202479. The reversal of 20020202471 is 17420202002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020202471 - 2³⁰ = 18946460647 is a prime.

It is a super-3 number, since 3×20020202471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020202479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010101235 + 10010101236.

It is an arithmetic number, because the mean of its divisors is an integer number (10010101236).

Almost surely, 2^20020202471 is an apocalyptic number.

20020202471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020202471 is an equidigital number, since it uses as much as digits as its factorization.

20020202471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 20020202471 its reverse (17420202002), we get a palindrome (37440404473).

The spelling of 20020202471 in words is "twenty billion, twenty million, two hundred two thousand, four hundred seventy-one".