111011001012 has 48 divisors (see below), whose sum is σ = 291748871680. Its totient is φ = 36496764864.

The previous prime is 111011001001. The next prime is 111011001019. The reversal of 111011001012 is 210100110111.

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 = 111011000985 and 111011001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011001019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7032388 + ... + 7048155.

Almost surely, 2^111011001012 is an apocalyptic number.

111011001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111011001012 is an abundant number, since it is smaller than the sum of its proper divisors (180737870668).

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

111011001012 is a wasteful number, since it uses less digits than its factorization.

111011001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14080629 (or 14080621 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111011001012 its reverse (210100110111), we get a palindrome (321111111123).

The spelling of 111011001012 in words is "one hundred eleven billion, eleven million, one thousand, twelve".