1100999999843 has 2 divisors, whose sum is σ = 1100999999844. Its totient is φ = 1100999999842.

The previous prime is 1100999999789. The next prime is 1100999999887. The reversal of 1100999999843 is 3489999990011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100999999843 - 2¹² = 1100999995747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100999999893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550499999921 + 550499999922.

It is an arithmetic number, because the mean of its divisors is an integer number (550499999922).

Almost surely, 2^{1100999999843} is an apocalyptic number.

1100999999843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100999999843 is an equidigital number, since it uses as much as digits as its factorization.

1100999999843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51018336, while the sum is 71.

The spelling of 1100999999843 in words is "one trillion, one hundred billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred forty-three".