1100000001097 has 2 divisors, whose sum is σ = 1100000001098. Its totient is φ = 1100000001096.

The previous prime is 1100000001077. The next prime is 1100000001127. The reversal of 1100000001097 is 7901000000011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971793753616 + 128206247481 = 985796^2 + 358059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100000001097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100000001077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000000548 + 550000000549.

It is an arithmetic number, because the mean of its divisors is an integer number (550000000549).

Almost surely, 2^{1100000001097} is an apocalyptic number.

It is an amenable number.

1100000001097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100000001097 is an equidigital number, since it uses as much as digits as its factorization.

1100000001097 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 19.

The spelling of 1100000001097 in words is "one trillion, one hundred billion, one thousand, ninety-seven".