20210102001097 has 2 divisors, whose sum is σ = 20210102001098. Its totient is φ = 20210102001096.

The previous prime is 20210102001091. The next prime is 20210102001191. The reversal of 20210102001097 is 79010020101202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19207498308496 + 1002603692601 = 4382636^2 + 1001301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210102001097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20210102001091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105051000548 + 10105051000549.

It is an arithmetic number, because the mean of its divisors is an integer number (10105051000549).

Almost surely, 2^{20210102001097} is an apocalyptic number.

It is an amenable number.

20210102001097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210102001097 is an equidigital number, since it uses as much as digits as its factorization.

20210102001097 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 20210102001097 its reverse (79010020101202), we get a palindrome (99220122102299).

The spelling of 20210102001097 in words is "twenty trillion, two hundred ten billion, one hundred two million, one thousand, ninety-seven".