11144124020 has 12 divisors (see below), whose sum is σ = 23402660484. Its totient is φ = 4457649600.

The previous prime is 11144124011. The next prime is 11144124067. The reversal of 11144124020 is 2042144111.

It can be written as a sum of positive squares in 2 ways, for example, as 7911746704 + 3232377316 = 88948^2 + 56854^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 557206201 = 11144124020 / (1 + 1 + 1 + 4 + 4 + 1 + 2 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11144123983 and 11144124001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278603081 + ... + 278603120.

It is an arithmetic number, because the mean of its divisors is an integer number (1950221707).

Almost surely, 2^11144124020 is an apocalyptic number.

11144124020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11144124020 is an abundant number, since it is smaller than the sum of its proper divisors (12258536464).

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

11144124020 is a wasteful number, since it uses less digits than its factorization.

11144124020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557206210 (or 557206208 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11144124020 its reverse (2042144111), we get a palindrome (13186268131).

The spelling of 11144124020 in words is "eleven billion, one hundred forty-four million, one hundred twenty-four thousand, twenty".