1118731109959 has 2 divisors, whose sum is σ = 1118731109960. Its totient is φ = 1118731109958.

The previous prime is 1118731109939. The next prime is 1118731109963. The reversal of 1118731109959 is 9599011378111.

It is a strong prime.

It is an emirp because it is prime and its reverse (9599011378111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1118731109959 - 2²⁵ = 1118697555527 is a prime.

It is a super-2 number, since 2×1118731109959² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118731109929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559365554979 + 559365554980.

It is an arithmetic number, because the mean of its divisors is an integer number (559365554980).

Almost surely, 2^{1118731109959} is an apocalyptic number.

1118731109959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118731109959 is an equidigital number, since it uses as much as digits as its factorization.

1118731109959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 55.

The spelling of 1118731109959 in words is "one trillion, one hundred eighteen billion, seven hundred thirty-one million, one hundred nine thousand, nine hundred fifty-nine".