1010111100197 has 4 divisors (see below), whose sum is σ = 1010130489516. Its totient is φ = 1010091710880.

The previous prime is 1010111100181. The next prime is 1010111100199. The reversal of 1010111100197 is 7910011110101.

1010111100197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 570317977636 + 439793122561 = 755194^2 + 663169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010111100197 - 2⁴ = 1010111100181 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 (1010111100199) 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, 9616304 + ... + 9720777.

It is an arithmetic number, because the mean of its divisors is an integer number (252532622379).

Almost surely, 2^{1010111100197} is an apocalyptic number.

It is an amenable number.

1010111100197 is a deficient number, since it is larger than the sum of its proper divisors (19389319).

1010111100197 is an equidigital number, since it uses as much as digits as its factorization.

1010111100197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19389318.

The product of its (nonzero) digits is 63, while the sum is 23.

Adding to 1010111100197 its reverse (7910011110101), we get a palindrome (8920122210298).

The spelling of 1010111100197 in words is "one trillion, ten billion, one hundred eleven million, one hundred thousand, one hundred ninety-seven".