20102313073 has 2 divisors, whose sum is σ = 20102313074. Its totient is φ = 20102313072.

The previous prime is 20102313047. The next prime is 20102313223. The reversal of 20102313073 is 37031320102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17979591744 + 2122721329 = 134088^2 + 46073^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102313073 - 2²⁹ = 19565442161 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102313013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051156536 + 10051156537.

It is an arithmetic number, because the mean of its divisors is an integer number (10051156537).

Almost surely, 2^20102313073 is an apocalyptic number.

It is an amenable number.

20102313073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102313073 is an equidigital number, since it uses as much as digits as its factorization.

20102313073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 20102313073 its reverse (37031320102), we get a palindrome (57133633175).

The spelling of 20102313073 in words is "twenty billion, one hundred two million, three hundred thirteen thousand, seventy-three".