1099999872029 has 2 divisors, whose sum is σ = 1099999872030. Its totient is φ = 1099999872028.

The previous prime is 1099999872017. The next prime is 1099999872067. The reversal of 1099999872029 is 9202789999901.

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., 790502366404 + 309497505625 = 889102^2 + 556325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099999872029 - 2³² = 1095704904733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099999872079) 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, 549999936014 + 549999936015.

It is an arithmetic number, because the mean of its divisors is an integer number (549999936015).

Almost surely, 2^{1099999872029} is an apocalyptic number.

It is an amenable number.

1099999872029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099999872029 is an equidigital number, since it uses as much as digits as its factorization.

1099999872029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119042784, while the sum is 74.

The spelling of 1099999872029 in words is "one trillion, ninety-nine billion, nine hundred ninety-nine million, eight hundred seventy-two thousand, twenty-nine".