20630113043 has 2 divisors, whose sum is σ = 20630113044. Its totient is φ = 20630113042.

The previous prime is 20630113039. The next prime is 20630113081. The reversal of 20630113043 is 34031103602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20630113043 - 2² = 20630113039 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20630118043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10315056521 + 10315056522.

It is an arithmetic number, because the mean of its divisors is an integer number (10315056522).

Almost surely, 2^20630113043 is an apocalyptic number.

20630113043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20630113043 is an equidigital number, since it uses as much as digits as its factorization.

20630113043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20630113043 its reverse (34031103602), we get a palindrome (54661216645).

The spelling of 20630113043 in words is "twenty billion, six hundred thirty million, one hundred thirteen thousand, forty-three".