20422402323013 has 2 divisors, whose sum is σ = 20422402323014. Its totient is φ = 20422402323012.

The previous prime is 20422402322989. The next prime is 20422402323031. The reversal of 20422402323013 is 31032320422402.

Together with next prime (20422402323031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12234094166529 + 8188308156484 = 3497727^2 + 2861522^2 .

It is a cyclic number.

It is not a de Polignac number, because 20422402323013 - 2²¹ = 20422400225861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20422402323073) 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, 10211201161506 + 10211201161507.

It is an arithmetic number, because the mean of its divisors is an integer number (10211201161507).

Almost surely, 2^{20422402323013} is an apocalyptic number.

It is an amenable number.

20422402323013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20422402323013 is an equidigital number, since it uses as much as digits as its factorization.

20422402323013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20422402323013 its reverse (31032320422402), we get a palindrome (51454722745415).

The spelling of 20422402323013 in words is "twenty trillion, four hundred twenty-two billion, four hundred two million, three hundred twenty-three thousand, thirteen".