20101202100097 has 2 divisors, whose sum is σ = 20101202100098. Its totient is φ = 20101202100096.

The previous prime is 20101202100079. The next prime is 20101202100121. The reversal of 20101202100097 is 79000120210102.

Together with previous prime (20101202100079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15109087735681 + 4992114364416 = 3887041^2 + 2234304^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101202100097 - 2¹¹ = 20101202098049 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101202100017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050601050048 + 10050601050049.

It is an arithmetic number, because the mean of its divisors is an integer number (10050601050049).

Almost surely, 2^{20101202100097} is an apocalyptic number.

It is an amenable number.

20101202100097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101202100097 is an equidigital number, since it uses as much as digits as its factorization.

20101202100097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 20101202100097 its reverse (79000120210102), we get a palindrome (99101322310199).

The spelling of 20101202100097 in words is "twenty trillion, one hundred one billion, two hundred two million, one hundred thousand, ninety-seven".