20106028297 has 2 divisors, whose sum is σ = 20106028298. Its totient is φ = 20106028296.

The previous prime is 20106028291. The next prime is 20106028307. The reversal of 20106028297 is 79282060102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20023382016 + 82646281 = 141504^2 + 9091^2 .

It is a cyclic number.

It is not a de Polignac number, because 20106028297 - 2¹¹ = 20106026249 is a prime.

It is not a weakly prime, because it can be changed into another prime (20106028291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053014148 + 10053014149.

It is an arithmetic number, because the mean of its divisors is an integer number (10053014149).

Almost surely, 2^20106028297 is an apocalyptic number.

It is an amenable number.

20106028297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20106028297 is an equidigital number, since it uses as much as digits as its factorization.

20106028297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

Adding to 20106028297 its reverse (79282060102), we get a palindrome (99388088399).

The spelling of 20106028297 in words is "twenty billion, one hundred six million, twenty-eight thousand, two hundred ninety-seven".