11112010020 has 36 divisors (see below), whose sum is σ = 33706430940. Its totient is φ = 2963202624.

The previous prime is 11112009971. The next prime is 11112010031. The reversal of 11112010020 is 2001021111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8501208804 + 2610801216 = 92202^2 + 51096^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11112009984 and 11112010011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30866515 + ... + 30866874.

Almost surely, 2^11112010020 is an apocalyptic number.

11112010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112010020 is an abundant number, since it is smaller than the sum of its proper divisors (22594420920).

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

11112010020 is a wasteful number, since it uses less digits than its factorization.

11112010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61733404 (or 61733399 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11112010020 its reverse (2001021111), we get a palindrome (13113031131).

The spelling of 11112010020 in words is "eleven billion, one hundred twelve million, ten thousand, twenty".