11111001011112 has 32 divisors (see below), whose sum is σ = 27777728923200. Its totient is φ = 3703636817664.

The previous prime is 11111001011111. The next prime is 11111001011153. The reversal of 11111001011112 is 21111010011111.

11111001011112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (11111001011111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224064 + ... + 4870352.

It is an arithmetic number, because the mean of its divisors is an integer number (868054028850).

Almost surely, 2^{11111001011112} is an apocalyptic number.

11111001011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111001011112 is an abundant number, since it is smaller than the sum of its proper divisors (16666727912088).

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

11111001011112 is a wasteful number, since it uses less digits than its factorization.

11111001011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773265 (or 3773261 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11111001011112 its reverse (21111010011111), we get a palindrome (32222011022223).

It can be divided in two parts, 1111100 and 1011112, that added together give a palindrome (2122212).

The spelling of 11111001011112 in words is "eleven trillion, one hundred eleven billion, one million, eleven thousand, one hundred twelve".