1121443340 has 24 divisors (see below), whose sum is σ = 2436240240. Its totient is φ = 433108928.

The previous prime is 1121443331. The next prime is 1121443391. The reversal of 1121443340 is 433441211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966182 + ... + 967341.

It is an arithmetic number, because the mean of its divisors is an integer number (101510010).

Almost surely, 2^1121443340 is an apocalyptic number.

1121443340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121443340 is an abundant number, since it is smaller than the sum of its proper divisors (1314796900).

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

1121443340 is a wasteful number, since it uses less digits than its factorization.

1121443340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933561 (or 1933559 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1121443340 is about 33487.9581342309. The cubic root of 1121443340 is about 1038.9447321170.

Adding to 1121443340 its reverse (433441211), we get a palindrome (1554884551).

The spelling of 1121443340 in words is "one billion, one hundred twenty-one million, four hundred forty-three thousand, three hundred forty".