11010101020 has 24 divisors (see below), whose sum is σ = 23211188784. Its totient is φ = 4386902016.

The previous prime is 11010100991. The next prime is 11010101041. The reversal of 11010101020 is 2010101011.

It is a junction number, because it is equal to n+sod(n) for n = 11010100994 and 11010101012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065882 + ... + 1076161.

It is an arithmetic number, because the mean of its divisors is an integer number (967132866).

Almost surely, 2^11010101020 is an apocalyptic number.

11010101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11010101020 is an abundant number, since it is smaller than the sum of its proper divisors (12201087764).

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

11010101020 is a wasteful number, since it uses less digits than its factorization.

11010101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142309 (or 2142307 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 11010101020 its reverse (2010101011), we get a palindrome (13020202031).

Subtracting from 11010101020 its reverse (2010101011), we obtain a palindrome (9000000009).

The spelling of 11010101020 in words is "eleven billion, ten million, one hundred one thousand, twenty".