11111100101010 has 576 divisors, whose sum is σ = 36641313176832. Its totient is φ = 2274793777152.

The previous prime is 11111100101009. The next prime is 11111100101029. The reversal of 11111100101010 is 1010100111111.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11111100100983 and 11111100101001.

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 287 ways as a sum of consecutive naturals, for example, 4966963612 + ... + 4966965848.

It is an arithmetic number, because the mean of its divisors is an integer number (63613390932).

Almost surely, 2^{11111100101010} is an apocalyptic number.

11111100101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111100101010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18320656588416).

11111100101010 is an abundant number, since it is smaller than the sum of its proper divisors (25530213075822).

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

11111100101010 is a wasteful number, since it uses less digits than its factorization.

11111100101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787 (or 2747 counting only the distinct ones).

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

Adding to 11111100101010 its reverse (1010100111111), we get a palindrome (12121200212121).

The spelling of 11111100101010 in words is "eleven trillion, one hundred eleven billion, one hundred million, one hundred one thousand, ten".