111002135205 has 64 divisors (see below), whose sum is σ = 205368887808. Its totient is φ = 50708152320.

The previous prime is 111002135183. The next prime is 111002135213. The reversal of 111002135205 is 502531200111.

It is not a de Polignac number, because 111002135205 - 2⁷ = 111002135077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 444 + ... + 471173.

It is an arithmetic number, because the mean of its divisors is an integer number (3208888872).

Almost surely, 2^111002135205 is an apocalyptic number.

111002135205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111002135205 is a deficient number, since it is larger than the sum of its proper divisors (94366752603).

111002135205 is a wasteful number, since it uses less digits than its factorization.

111002135205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471726.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 111002135205 its reverse (502531200111), we get a palindrome (613533335316).

The spelling of 111002135205 in words is "one hundred eleven billion, two million, one hundred thirty-five thousand, two hundred five".