11310111020 has 96 divisors (see below), whose sum is σ = 26214789888. Its totient is φ = 4072753152.

The previous prime is 11310110969. The next prime is 11310111037. The reversal of 11310111020 is 2011101311.

It is a happy number.

It is a super-2 number, since 2×11310111020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11310110992 and 11310111010.

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 31 ways as a sum of consecutive naturals, for example, 3823382 + ... + 3826338.

It is an arithmetic number, because the mean of its divisors is an integer number (273070728).

Almost surely, 2^11310111020 is an apocalyptic number.

11310111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11310111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13107394944).

11310111020 is an abundant number, since it is smaller than the sum of its proper divisors (14904678868).

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

11310111020 is a wasteful number, since it uses less digits than its factorization.

11310111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3337 counting only the distinct ones).

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

Adding to 11310111020 its reverse (2011101311), we get a palindrome (13321212331).

The spelling of 11310111020 in words is "eleven billion, three hundred ten million, one hundred eleven thousand, twenty".