1111124420 has 48 divisors (see below), whose sum is σ = 2823569280. Its totient is φ = 358546944.

The previous prime is 1111124407. The next prime is 1111124431. The reversal of 1111124420 is 244211111.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231050 + ... + 235809.

It is an arithmetic number, because the mean of its divisors is an integer number (58824360).

Almost surely, 2^1111124420 is an apocalyptic number.

1111124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111124420 is an abundant number, since it is smaller than the sum of its proper divisors (1712444860).

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

1111124420 is a wasteful number, since it uses less digits than its factorization.

1111124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466892 (or 466890 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1111124420 is about 33333.5329660689. The cubic root of 1111124420 is about 1035.7483040160.

Adding to 1111124420 its reverse (244211111), we get a palindrome (1355335531).

The spelling of 1111124420 in words is "one billion, one hundred eleven million, one hundred twenty-four thousand, four hundred twenty".