11120020020 has 36 divisors (see below), whose sum is σ = 33730727940. Its totient is φ = 2965338624.

The previous prime is 11120019961. The next prime is 11120020027. The reversal of 11120020020 is 2002002111.

It can be written as a sum of positive squares in 2 ways, for example, as 7900365456 + 3219654564 = 88884^2 + 56742^2 .

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).

11120020020 is a modest number, since divided by 20020 gives 11120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11120019984 and 11120020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120020027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30888765 + ... + 30889124.

It is an arithmetic number, because the mean of its divisors is an integer number (936964665).

Almost surely, 2^11120020020 is an apocalyptic number.

11120020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120020020 is an abundant number, since it is smaller than the sum of its proper divisors (22610707920).

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

11120020020 is a wasteful number, since it uses less digits than its factorization.

11120020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61777904 (or 61777899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11120020020 its reverse (2002002111), we get a palindrome (13122022131).

The spelling of 11120020020 in words is "eleven billion, one hundred twenty million, twenty thousand, twenty".