109871018843 has 2 divisors, whose sum is σ = 109871018844. Its totient is φ = 109871018842.

The previous prime is 109871018783. The next prime is 109871018897. The reversal of 109871018843 is 348810178901.

It is a strong prime.

It is an emirp because it is prime and its reverse (348810178901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109871018843 - 2⁶ = 109871018779 is a prime.

It is a super-2 number, since 2×109871018843² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109871018791 and 109871018800.

It is not a weakly prime, because it can be changed into another prime (109871011843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54935509421 + 54935509422.

It is an arithmetic number, because the mean of its divisors is an integer number (54935509422).

Almost surely, 2^109871018843 is an apocalyptic number.

109871018843 is a deficient number, since it is larger than the sum of its proper divisors (1).

109871018843 is an equidigital number, since it uses as much as digits as its factorization.

109871018843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 50.

The spelling of 109871018843 in words is "one hundred nine billion, eight hundred seventy-one million, eighteen thousand, eight hundred forty-three".