20020003247 has 2 divisors, whose sum is σ = 20020003248. Its totient is φ = 20020003246.

The previous prime is 20020003193. The next prime is 20020003271. The reversal of 20020003247 is 74230002002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020003247 - 2¹⁶ = 20019937711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020003547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010001623 + 10010001624.

It is an arithmetic number, because the mean of its divisors is an integer number (10010001624).

Almost surely, 2^20020003247 is an apocalyptic number.

20020003247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020003247 is an equidigital number, since it uses as much as digits as its factorization.

20020003247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

Adding to 20020003247 its reverse (74230002002), we get a palindrome (94250005249).

The spelling of 20020003247 in words is "twenty billion, twenty million, three thousand, two hundred forty-seven".