1011124420 has 12 divisors (see below), whose sum is σ = 2123361324. Its totient is φ = 404449760.

The previous prime is 1011124399. The next prime is 1011124441. The reversal of 1011124420 is 244211101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011124399) and next prime (1011124441).

It can be written as a sum of positive squares in 2 ways, for example, as 569872384 + 441252036 = 23872^2 + 21006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011124394 and 1011124403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25278091 + ... + 25278130.

It is an arithmetic number, because the mean of its divisors is an integer number (176946777).

Almost surely, 2^1011124420 is an apocalyptic number.

1011124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011124420 is an abundant number, since it is smaller than the sum of its proper divisors (1112236904).

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

1011124420 is a wasteful number, since it uses less digits than its factorization.

1011124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50556230 (or 50556228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1011124420 is about 31798.1826524725. The cubic root of 1011124420 is about 1003.6944740527.

Adding to 1011124420 its reverse (244211101), we get a palindrome (1255335521).

The spelling of 1011124420 in words is "one billion, eleven million, one hundred twenty-four thousand, four hundred twenty".