20010020001197 has 4 divisors (see below), whose sum is σ = 20010057489660. Its totient is φ = 20009982512736.

The previous prime is 20010020001149. The next prime is 20010020001221. The reversal of 20010020001197 is 79110002001002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17028340624681 + 2981679376516 = 4126541^2 + 1726754^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010020001197 - 2⁶ = 20010020001133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010020001107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17931848 + ... + 19015025.

It is an arithmetic number, because the mean of its divisors is an integer number (5002514372415).

Almost surely, 2^{20010020001197} is an apocalyptic number.

It is an amenable number.

20010020001197 is a deficient number, since it is larger than the sum of its proper divisors (37488463).

20010020001197 is an equidigital number, since it uses as much as digits as its factorization.

20010020001197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37488462.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 20010020001197 its reverse (79110002001002), we get a palindrome (99120022002199).

The spelling of 20010020001197 in words is "twenty trillion, ten billion, twenty million, one thousand, one hundred ninety-seven".