20042422342513 has 2 divisors, whose sum is σ = 20042422342514. Its totient is φ = 20042422342512.

The previous prime is 20042422342493. The next prime is 20042422342559. The reversal of 20042422342513 is 31524322424002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627939042704 + 9414483299809 = 3260052^2 + 3068303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20042422342513 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042422342013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211171256 + 10021211171257.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211171257).

Almost surely, 2^{20042422342513} is an apocalyptic number.

It is an amenable number.

20042422342513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422342513 is an equidigital number, since it uses as much as digits as its factorization.

20042422342513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 20042422342513 its reverse (31524322424002), we get a palindrome (51566744766515).

The spelling of 20042422342513 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, three hundred forty-two thousand, five hundred thirteen".