111101011012 has 24 divisors (see below), whose sum is σ = 197206313472. Its totient is φ = 54756676800.

The previous prime is 111101011001. The next prime is 111101011033. The reversal of 111101011012 is 210110101111.

It is a self number, because there is not a number n which added to its sum of digits gives 111101011012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413837 + ... + 1490347.

It is an arithmetic number, because the mean of its divisors is an integer number (8216929728).

Almost surely, 2^111101011012 is an apocalyptic number.

It is an amenable number.

111101011012 is a deficient number, since it is larger than the sum of its proper divisors (86105302460).

111101011012 is a wasteful number, since it uses less digits than its factorization.

111101011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81699 (or 81697 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111101011012 its reverse (210110101111), we get a palindrome (321211112123).

Subtracting 111101011012 from its reverse (210110101111), we obtain a palindrome (99009090099).

The spelling of 111101011012 in words is "one hundred eleven billion, one hundred one million, eleven thousand, twelve".