20323303073 has 2 divisors, whose sum is σ = 20323303074. Its totient is φ = 20323303072.

The previous prime is 20323303069. The next prime is 20323303081. The reversal of 20323303073 is 37030332302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19748118784 + 575184289 = 140528^2 + 23983^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323303073 - 2² = 20323303069 is a prime.

It is a super-2 number, since 2×20323303073² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20323303373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161651536 + 10161651537.

It is an arithmetic number, because the mean of its divisors is an integer number (10161651537).

Almost surely, 2^20323303073 is an apocalyptic number.

It is an amenable number.

20323303073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323303073 is an equidigital number, since it uses as much as digits as its factorization.

20323303073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 26.

Adding to 20323303073 its reverse (37030332302), we get a palindrome (57353635375).

The spelling of 20323303073 in words is "twenty billion, three hundred twenty-three million, three hundred three thousand, seventy-three".