1111440020 has 24 divisors (see below), whose sum is σ = 2383686144. Its totient is φ = 435116576.

The previous prime is 1111439999. The next prime is 1111440023. The reversal of 1111440020 is 200441111.

It is a junction number, because it is equal to n+sod(n) for n = 1111439977 and 1111440004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111440023) 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, 590252 + ... + 592131.

It is an arithmetic number, because the mean of its divisors is an integer number (99320256).

Almost surely, 2^1111440020 is an apocalyptic number.

1111440020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111440020 is an abundant number, since it is smaller than the sum of its proper divisors (1272246124).

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

1111440020 is a wasteful number, since it uses less digits than its factorization.

1111440020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182439 (or 1182437 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1111440020 is about 33338.2666016096. The cubic root of 1111440020 is about 1035.8463582077.

Adding to 1111440020 its reverse (200441111), we get a palindrome (1311881131).

The spelling of 1111440020 in words is "one billion, one hundred eleven million, four hundred forty thousand, twenty".