20120200097 has 2 divisors, whose sum is σ = 20120200098. Its totient is φ = 20120200096.

The previous prime is 20120200069. The next prime is 20120200201. The reversal of 20120200097 is 79000202102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16559571856 + 3560628241 = 128684^2 + 59671^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120200097 - 2⁶ = 20120200033 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120202097) 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, 10060100048 + 10060100049.

It is an arithmetic number, because the mean of its divisors is an integer number (10060100049).

Almost surely, 2^20120200097 is an apocalyptic number.

It is an amenable number.

20120200097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120200097 is an equidigital number, since it uses as much as digits as its factorization.

20120200097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 20120200097 its reverse (79000202102), we get a palindrome (99120402199).

The spelling of 20120200097 in words is "twenty billion, one hundred twenty million, two hundred thousand, ninety-seven".