1100002099873 has 2 divisors, whose sum is σ = 1100002099874. Its totient is φ = 1100002099872.

The previous prime is 1100002099837. The next prime is 1100002099883. The reversal of 1100002099873 is 3789902000011.

Together with previous prime (1100002099837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817709658529 + 282292441344 = 904273^2 + 531312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100002099873 is a prime.

It is a super-2 number, since 2×1100002099873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100002099813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550001049936 + 550001049937.

It is an arithmetic number, because the mean of its divisors is an integer number (550001049937).

Almost surely, 2^{1100002099873} is an apocalyptic number.

It is an amenable number.

1100002099873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100002099873 is an equidigital number, since it uses as much as digits as its factorization.

1100002099873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

Adding to 1100002099873 its reverse (3789902000011), we get a palindrome (4889904099884).

The spelling of 1100002099873 in words is "one trillion, one hundred billion, two million, ninety-nine thousand, eight hundred seventy-three".