11011211310020 has 96 divisors (see below), whose sum is σ = 23711911673856. Its totient is φ = 4293770342400.

The previous prime is 11011211310013. The next prime is 11011211310079. The reversal of 11011211310020 is 2001311211011.

It is a junction number, because it is equal to n+sod(n) for n = 11011211309977 and 11011211310004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153509684 + ... + 153581396.

It is an arithmetic number, because the mean of its divisors is an integer number (246999079936).

Almost surely, 2^{11011211310020} is an apocalyptic number.

11011211310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011211310020 is an abundant number, since it is smaller than the sum of its proper divisors (12700700363836).

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

11011211310020 is a wasteful number, since it uses less digits than its factorization.

11011211310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72901 (or 72899 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11011211310020 its reverse (2001311211011), we get a palindrome (13012522521031).

Subtracting from 11011211310020 its reverse (2001311211011), we obtain a palindrome (9009900099009).

The spelling of 11011211310020 in words is "eleven trillion, eleven billion, two hundred eleven million, three hundred ten thousand, twenty".