111011111000010 has 120 divisors (see below), whose sum is σ = 323224067574540. Its totient is φ = 27325811904768.

The previous prime is 111011110999961. The next prime is 111011111000033. The reversal of 111011111000010 is 10000111110111.

It can be written as a sum of positive squares in 6 ways, for example, as 33153446957409 + 77857664042601 = 5757903^2 + 8823699^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111011110999956 and 111011111000001.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 405338715 + ... + 405612494.

Almost surely, 2^{111011111000010} is an apocalyptic number.

111011111000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111011111000010 is an abundant number, since it is smaller than the sum of its proper divisors (212212956574530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011111000010 is a wasteful number, since it uses less digits than its factorization.

111011111000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810951254 (or 810951232 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111011111000010 its reverse (10000111110111), we get a palindrome (121011222110121).

The spelling of 111011111000010 in words is "one hundred eleven trillion, eleven billion, one hundred eleven million, ten", and thus it is an aban number.