20425316101 has 2 divisors, whose sum is σ = 20425316102. Its totient is φ = 20425316100.

The previous prime is 20425315969. The next prime is 20425316143. The reversal of 20425316101 is 10161352402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19716372225 + 708943876 = 140415^2 + 26626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20425316101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20425316161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212658050 + 10212658051.

It is an arithmetic number, because the mean of its divisors is an integer number (10212658051).

Almost surely, 2^20425316101 is an apocalyptic number.

It is an amenable number.

20425316101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425316101 is an equidigital number, since it uses as much as digits as its factorization.

20425316101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20425316101 its reverse (10161352402), we get a palindrome (30586668503).

The spelling of 20425316101 in words is "twenty billion, four hundred twenty-five million, three hundred sixteen thousand, one hundred one".