11101011020 has 24 divisors (see below), whose sum is σ = 25431407568. Its totient is φ = 4036731200.

The previous prime is 11101011017. The next prime is 11101011113. The reversal of 11101011020 is 2011010111.

It is a happy number.

It is a super-2 number, since 2×11101011020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101010989 and 11101011007.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25229351 + ... + 25229790.

It is an arithmetic number, because the mean of its divisors is an integer number (1059641982).

Almost surely, 2^11101011020 is an apocalyptic number.

11101011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101011020 is an abundant number, since it is smaller than the sum of its proper divisors (14330396548).

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

11101011020 is a wasteful number, since it uses less digits than its factorization.

11101011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50459161 (or 50459159 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11101011020 its reverse (2011010111), we get a palindrome (13112021131).

Subtracting from 11101011020 its reverse (2011010111), we obtain a palindrome (9090000909).

The spelling of 11101011020 in words is "eleven billion, one hundred one million, eleven thousand, twenty".