20425353313 has 2 divisors, whose sum is σ = 20425353314. Its totient is φ = 20425353312.

The previous prime is 20425353287. The next prime is 20425353317. The reversal of 20425353313 is 31335352402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15403788544 + 5021564769 = 124112^2 + 70863^2 .

It is a cyclic number.

It is not a de Polignac number, because 20425353313 - 2¹³ = 20425345121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20425353317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212676656 + 10212676657.

It is an arithmetic number, because the mean of its divisors is an integer number (10212676657).

Almost surely, 2^20425353313 is an apocalyptic number.

It is an amenable number.

20425353313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425353313 is an equidigital number, since it uses as much as digits as its factorization.

20425353313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 20425353313 in words is "twenty billion, four hundred twenty-five million, three hundred fifty-three thousand, three hundred thirteen".