11101011111020 has 24 divisors (see below), whose sum is σ = 23321914329168. Its totient is φ = 4438539492800.

The previous prime is 11101011111019. The next prime is 11101011111041. The reversal of 11101011111020 is 2011111010111.

It is a happy number.

11101011111020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11101011110992 and 11101011111010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116510666 + ... + 116605905.

It is an arithmetic number, because the mean of its divisors is an integer number (971746430382).

Almost surely, 2^{11101011111020} is an apocalyptic number.

11101011111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101011111020 is an abundant number, since it is smaller than the sum of its proper divisors (12220903218148).

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

11101011111020 is a wasteful number, since it uses less digits than its factorization.

11101011111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233118961 (or 233118959 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11101011111020 its reverse (2011111010111), we get a palindrome (13112122121131).

The spelling of 11101011111020 in words is "eleven trillion, one hundred one billion, eleven million, one hundred eleven thousand, twenty".