1100109999869 has 2 divisors, whose sum is σ = 1100109999870. Its totient is φ = 1100109999868.

The previous prime is 1100109999853. The next prime is 1100110000001. The reversal of 1100109999869 is 9689999010011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607523595844 + 492586404025 = 779438^2 + 701845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100109999869 - 2⁴ = 1100109999853 is a prime.

It is a super-2 number, since 2×1100109999869² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100109999809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550054999934 + 550054999935.

It is an arithmetic number, because the mean of its divisors is an integer number (550054999935).

Almost surely, 2^{1100109999869} is an apocalyptic number.

It is an amenable number.

1100109999869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100109999869 is an equidigital number, since it uses as much as digits as its factorization.

1100109999869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2834352, while the sum is 62.

The spelling of 1100109999869 in words is "one trillion, one hundred billion, one hundred nine million, nine hundred ninety-nine thousand, eight hundred sixty-nine".