11072012020 has 24 divisors (see below), whose sum is σ = 23272237800. Its totient is φ = 4424802432.

The previous prime is 11072011963. The next prime is 11072012027. The reversal of 11072012020 is 2021027011.

It can be written as a sum of positive squares in 4 ways, for example, as 22638564 + 11049373456 = 4758^2 + 105116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11072011985 and 11072012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11072012027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227415 + ... + 271774.

It is an arithmetic number, because the mean of its divisors is an integer number (969676575).

Almost surely, 2^11072012020 is an apocalyptic number.

11072012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11072012020 is an abundant number, since it is smaller than the sum of its proper divisors (12200225780).

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

11072012020 is a wasteful number, since it uses less digits than its factorization.

11072012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500307 (or 500305 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 11072012020 its reverse (2021027011), we get a palindrome (13093039031).

The spelling of 11072012020 in words is "eleven billion, seventy-two million, twelve thousand, twenty".