20323035013 has 2 divisors, whose sum is σ = 20323035014. Its totient is φ = 20323035012.

The previous prime is 20323034993. The next prime is 20323035053. The reversal of 20323035013 is 31053032302.

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., 20168828289 + 154206724 = 142017^2 + 12418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323035013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323035053) 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, 10161517506 + 10161517507.

It is an arithmetic number, because the mean of its divisors is an integer number (10161517507).

Almost surely, 2^20323035013 is an apocalyptic number.

It is an amenable number.

20323035013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323035013 is an equidigital number, since it uses as much as digits as its factorization.

20323035013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 22.

Adding to 20323035013 its reverse (31053032302), we get a palindrome (51376067315).

The spelling of 20323035013 in words is "twenty billion, three hundred twenty-three million, thirty-five thousand, thirteen".