20323102153073 has 2 divisors, whose sum is σ = 20323102153074. Its totient is φ = 20323102153072.

The previous prime is 20323102153049. The next prime is 20323102153141. The reversal of 20323102153073 is 37035120132302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18051426197809 + 2271675955264 = 4248697^2 + 1507208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323102153073 is a prime.

It is a super-2 number, since 2×20323102153073² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20323102183073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161551076536 + 10161551076537.

It is an arithmetic number, because the mean of its divisors is an integer number (10161551076537).

Almost surely, 2^{20323102153073} is an apocalyptic number.

It is an amenable number.

20323102153073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323102153073 is an equidigital number, since it uses as much as digits as its factorization.

20323102153073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 32.

Adding to 20323102153073 its reverse (37035120132302), we get a palindrome (57358222285375).

The spelling of 20323102153073 in words is "twenty trillion, three hundred twenty-three billion, one hundred two million, one hundred fifty-three thousand, seventy-three".