11000001101985 has 48 divisors (see below), whose sum is σ = 21804510559104. Its totient is φ = 5025333735936.

The previous prime is 11000001101951. The next prime is 11000001102007. The reversal of 11000001101985 is 58910110000011.

It is not a de Polignac number, because 11000001101985 - 2¹³ = 11000001093793 is a prime.

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, 10753767 + ... + 11732156.

It is an arithmetic number, because the mean of its divisors is an integer number (454260636648).

Almost surely, 2^{11000001101985} is an apocalyptic number.

11000001101985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11000001101985 is a deficient number, since it is larger than the sum of its proper divisors (10804509457119).

11000001101985 is a wasteful number, since it uses less digits than its factorization.

11000001101985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487494 (or 22487491 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 27.

Adding to 11000001101985 its reverse (58910110000011), we get a palindrome (69910111101996).

The spelling of 11000001101985 in words is "eleven trillion, one million, one hundred one thousand, nine hundred eighty-five".