1099941280871 has 2 divisors, whose sum is σ = 1099941280872. Its totient is φ = 1099941280870.

The previous prime is 1099941280849. The next prime is 1099941280883. The reversal of 1099941280871 is 1780821499901.

It is a strong prime.

It is an emirp because it is prime and its reverse (1780821499901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1099941280871 - 2¹⁰ = 1099941279847 is a prime.

It is a super-2 number, since 2×1099941280871² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1099941280871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099941280171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549970640435 + 549970640436.

It is an arithmetic number, because the mean of its divisors is an integer number (549970640436).

Almost surely, 2^{1099941280871} is an apocalyptic number.

1099941280871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099941280871 is an equidigital number, since it uses as much as digits as its factorization.

1099941280871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 59.

The spelling of 1099941280871 in words is "one trillion, ninety-nine billion, nine hundred forty-one million, two hundred eighty thousand, eight hundred seventy-one".