1113512351985 has 48 divisors (see below), whose sum is σ = 2105707002048. Its totient is φ = 539844681600.

The previous prime is 1113512351969. The next prime is 1113512352119. The reversal of 1113512351985 is 5891532153111.

1113512351985 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 5 + 123 + 519 + 8 + 5 = 666.

It is not a de Polignac number, because 1113512351985 - 2⁴ = 1113512351969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1113512351985.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7235499 + ... + 7387791.

It is an arithmetic number, because the mean of its divisors is an integer number (43868895876).

Almost surely, 2^{1113512351985} is an apocalyptic number.

1113512351985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1113512351985 is a deficient number, since it is larger than the sum of its proper divisors (992194650063).

1113512351985 is a wasteful number, since it uses less digits than its factorization.

1113512351985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167086 (or 167083 counting only the distinct ones).

The product of its digits is 162000, while the sum is 45.

The spelling of 1113512351985 in words is "one trillion, one hundred thirteen billion, five hundred twelve million, three hundred fifty-one thousand, nine hundred eighty-five".