11111100000000 has 2592 divisors, whose sum is σ = 50972223902208. Its totient is φ = 2073600000000.

The previous prime is 11111099999969. The next prime is 11111100000023. The reversal of 11111100000000 is 111111.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 300299999982 + ... + 300300000018.

Almost surely, 2^{11111100000000} is an apocalyptic number.

11111100000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111100000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25486111951104).

11111100000000 is an abundant number, since it is smaller than the sum of its proper divisors (39861123902208).

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

11111100000000 is an frugal number, since it uses more digits than its factorization.

11111100000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 11111100000000 its reverse (111111), we get a palindrome (11111100111111).

11111100000000 divided by its reverse (111111) gives a 8-th power (100000000 = 10⁸).

It can be divided in two parts, 111 and 11100000000, that multiplied together give a square (1232100000000 = 1110000²).

The spelling of 11111100000000 in words is "eleven trillion, one hundred eleven billion, one hundred million", and thus it is an aban number.