20630106361 has 2 divisors, whose sum is σ = 20630106362. Its totient is φ = 20630106360.

The previous prime is 20630106253. The next prime is 20630106377. The reversal of 20630106361 is 16360103602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13637801961 + 6992304400 = 116781^2 + 83620^2 .

It is a cyclic number.

It is not a de Polignac number, because 20630106361 - 2¹³ = 20630098169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20630116361) 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, 10315053180 + 10315053181.

It is an arithmetic number, because the mean of its divisors is an integer number (10315053181).

Almost surely, 2^20630106361 is an apocalyptic number.

It is an amenable number.

20630106361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20630106361 is an equidigital number, since it uses as much as digits as its factorization.

20630106361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20630106361 its reverse (16360103602), we get a palindrome (36990209963).

The spelling of 20630106361 in words is "twenty billion, six hundred thirty million, one hundred six thousand, three hundred sixty-one".