1111100100197 has 2 divisors, whose sum is σ = 1111100100198. Its totient is φ = 1111100100196.

The previous prime is 1111100100167. The next prime is 1111100100223. The reversal of 1111100100197 is 7910010011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840964195681 + 270135904516 = 917041^2 + 519746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111100100197 - 2¹⁶ = 1111100034661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111100100167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555550050098 + 555550050099.

It is an arithmetic number, because the mean of its divisors is an integer number (555550050099).

Almost surely, 2^{1111100100197} is an apocalyptic number.

It is an amenable number.

1111100100197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111100100197 is an equidigital number, since it uses as much as digits as its factorization.

1111100100197 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1111100100197 in words is "one trillion, one hundred eleven billion, one hundred million, one hundred thousand, one hundred ninety-seven".