11011010111020 has 48 divisors (see below), whose sum is σ = 23774506551936. Its totient is φ = 4281123456000.

The previous prime is 11011010110987. The next prime is 11011010111029. The reversal of 11011010111020 is 2011101011011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11011010110988 and 11011010111006.

It is not an unprimeable number, because it can be changed into a prime (11011010111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24552801 + ... + 24997240.

It is an arithmetic number, because the mean of its divisors is an integer number (495302219832).

Almost surely, 2^{11011010111020} is an apocalyptic number.

11011010111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011010111020 is an abundant number, since it is smaller than the sum of its proper divisors (12763496440916).

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

11011010111020 is a wasteful number, since it uses less digits than its factorization.

11011010111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49550362 (or 49550360 counting only the distinct ones).

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

Adding to 11011010111020 its reverse (2011101011011), we get a palindrome (13022111122031).

The spelling of 11011010111020 in words is "eleven trillion, eleven billion, ten million, one hundred eleven thousand, twenty".