20789120941 has 2 divisors, whose sum is σ = 20789120942. Its totient is φ = 20789120940.

The previous prime is 20789120923. The next prime is 20789120951. The reversal of 20789120941 is 14902198702.

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., 14219370025 + 6569750916 = 119245^2 + 81054^2 .

It is a cyclic number.

It is not a de Polignac number, because 20789120941 - 2¹¹ = 20789118893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20789120951) 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, 10394560470 + 10394560471.

It is an arithmetic number, because the mean of its divisors is an integer number (10394560471).

Almost surely, 2^20789120941 is an apocalyptic number.

It is an amenable number.

20789120941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20789120941 is an equidigital number, since it uses as much as digits as its factorization.

20789120941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 20789120941 in words is "twenty billion, seven hundred eighty-nine million, one hundred twenty thousand, nine hundred forty-one".