20773107097 has 2 divisors, whose sum is σ = 20773107098. Its totient is φ = 20773107096.

The previous prime is 20773107077. The next prime is 20773107119. The reversal of 20773107097 is 79070137702.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13006033936 + 7767073161 = 114044^2 + 88131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20773107097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20773107067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10386553548 + 10386553549.

It is an arithmetic number, because the mean of its divisors is an integer number (10386553549).

Almost surely, 2^20773107097 is an apocalyptic number.

It is an amenable number.

20773107097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20773107097 is an equidigital number, since it uses as much as digits as its factorization.

20773107097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129654, while the sum is 43.

The spelling of 20773107097 in words is "twenty billion, seven hundred seventy-three million, one hundred seven thousand, ninety-seven".