11131101020 has 24 divisors (see below), whose sum is σ = 25173413664. Its totient is φ = 4109944896.

The previous prime is 11131100987. The next prime is 11131101031. The reversal of 11131101020 is 2010113111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11131100992 and 11131101010.

It is a congruent number.

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, 21405704 + ... + 21406223.

It is an arithmetic number, because the mean of its divisors is an integer number (1048892236).

Almost surely, 2^11131101020 is an apocalyptic number.

11131101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131101020 is an abundant number, since it is smaller than the sum of its proper divisors (14042312644).

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

11131101020 is a wasteful number, since it uses less digits than its factorization.

11131101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42811949 (or 42811947 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11131101020 its reverse (2010113111), we get a palindrome (13141214131).

The spelling of 11131101020 in words is "eleven billion, one hundred thirty-one million, one hundred one thousand, twenty".