1121114440 has 16 divisors (see below), whose sum is σ = 2522507580. Its totient is φ = 448445760.

The previous prime is 1121114431. The next prime is 1121114479. The reversal of 1121114440 is 444111211.

It can be written as a sum of positive squares in 2 ways, for example, as 987342084 + 133772356 = 31422^2 + 11566^2 .

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 3 ways as a sum of consecutive naturals, for example, 14013891 + ... + 14013970.

Almost surely, 2^1121114440 is an apocalyptic number.

1121114440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121114440 is an abundant number, since it is smaller than the sum of its proper divisors (1401393140).

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

1121114440 is a wasteful number, since it uses less digits than its factorization.

1121114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28027872 (or 28027868 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1121114440 is about 33483.0470536957. The cubic root of 1121114440 is about 1038.8431539925.

Adding to 1121114440 its reverse (444111211), we get a palindrome (1565225651).

It can be divided in two parts, 11211 and 14440, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 1121114440 in words is "one billion, one hundred twenty-one million, one hundred fourteen thousand, four hundred forty".