20885338043 has 2 divisors, whose sum is σ = 20885338044. Its totient is φ = 20885338042.

The previous prime is 20885338039. The next prime is 20885338093. The reversal of 20885338043 is 34083358802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20885338043 - 2² = 20885338039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20885337985 and 20885338003.

It is not a weakly prime, because it can be changed into another prime (20885338003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10442669021 + 10442669022.

It is an arithmetic number, because the mean of its divisors is an integer number (10442669022).

Almost surely, 2^20885338043 is an apocalyptic number.

20885338043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20885338043 is an equidigital number, since it uses as much as digits as its factorization.

20885338043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 20885338043 in words is "twenty billion, eight hundred eighty-five million, three hundred thirty-eight thousand, forty-three".