1113312208985 has 4 divisors (see below), whose sum is σ = 1335974650788. Its totient is φ = 890649767184.

The previous prime is 1113312208979. The next prime is 1113312208991. The reversal of 1113312208985 is 5898022133111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1113312208979) and next prime (1113312208991).

It can be written as a sum of positive squares in 2 ways, for example, as 458020339984 + 655291869001 = 676772^2 + 809501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113312208985 - 2⁴ = 1113312208969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111331220894 + ... + 111331220903.

It is an arithmetic number, because the mean of its divisors is an integer number (333993662697).

Almost surely, 2^{1113312208985} is an apocalyptic number.

It is an amenable number.

1113312208985 is a deficient number, since it is larger than the sum of its proper divisors (222662441803).

1113312208985 is an equidigital number, since it uses as much as digits as its factorization.

1113312208985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222662441802.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 1113312208985 in words is "one trillion, one hundred thirteen billion, three hundred twelve million, two hundred eight thousand, nine hundred eighty-five".