20425351414213 has 2 divisors, whose sum is σ = 20425351414214. Its totient is φ = 20425351414212.

The previous prime is 20425351414207. The next prime is 20425351414229. The reversal of 20425351414213 is 31241415352402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20205950980609 + 219400433604 = 4495103^2 + 468402^2 .

It is a cyclic number.

It is not a de Polignac number, because 20425351414213 - 2¹³ = 20425351406021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20425351414283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212675707106 + 10212675707107.

It is an arithmetic number, because the mean of its divisors is an integer number (10212675707107).

Almost surely, 2^{20425351414213} is an apocalyptic number.

It is an amenable number.

20425351414213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425351414213 is an equidigital number, since it uses as much as digits as its factorization.

20425351414213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20425351414213 its reverse (31241415352402), we get a palindrome (51666766766615).

The spelling of 20425351414213 in words is "twenty trillion, four hundred twenty-five billion, three hundred fifty-one million, four hundred fourteen thousand, two hundred thirteen".