11044312020 has 144 divisors (see below), whose sum is σ = 40302138240. Its totient is φ = 2391545088.

The previous prime is 11044312009. The next prime is 11044312033. The reversal of 11044312020 is 2021344011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11044311984 and 11044312002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206727 + ... + 254606.

It is an arithmetic number, because the mean of its divisors is an integer number (279875960).

Almost surely, 2^11044312020 is an apocalyptic number.

11044312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11044312020 is an abundant number, since it is smaller than the sum of its proper divisors (29257826220).

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

11044312020 is a wasteful number, since it uses less digits than its factorization.

11044312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461374 (or 461369 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11044312020 its reverse (2021344011), we get a palindrome (13065656031).

The spelling of 11044312020 in words is "eleven billion, forty-four million, three hundred twelve thousand, twenty".