20020243337 has 2 divisors, whose sum is σ = 20020243338. Its totient is φ = 20020243336.

The previous prime is 20020243291. The next prime is 20020243367. The reversal of 20020243337 is 73334202002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14266869136 + 5753374201 = 119444^2 + 75851^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020243337 - 2⁸ = 20020243081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020243367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010121668 + 10010121669.

It is an arithmetic number, because the mean of its divisors is an integer number (10010121669).

Almost surely, 2^20020243337 is an apocalyptic number.

It is an amenable number.

20020243337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020243337 is an equidigital number, since it uses as much as digits as its factorization.

20020243337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 26.

Adding to 20020243337 its reverse (73334202002), we get a palindrome (93354445339).

The spelling of 20020243337 in words is "twenty billion, twenty million, two hundred forty-three thousand, three hundred thirty-seven".