20320213283 has 2 divisors, whose sum is σ = 20320213284. Its totient is φ = 20320213282.

The previous prime is 20320213279. The next prime is 20320213321. The reversal of 20320213283 is 38231202302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20320213283 - 2² = 20320213279 is a prime.

It is a super-2 number, since 2×20320213283² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20320293283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160106641 + 10160106642.

It is an arithmetic number, because the mean of its divisors is an integer number (10160106642).

Almost surely, 2^20320213283 is an apocalyptic number.

20320213283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320213283 is an equidigital number, since it uses as much as digits as its factorization.

20320213283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20320213283 its reverse (38231202302), we get a palindrome (58551415585).

The spelling of 20320213283 in words is "twenty billion, three hundred twenty million, two hundred thirteen thousand, two hundred eighty-three".