1121807382 has 16 divisors (see below), whose sum is σ = 2341163520. Its totient is φ = 357677672.

The previous prime is 1121807371. The next prime is 1121807417. The reversal of 1121807382 is 2837081211.

It is a congruent number.

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, 4064382 + ... + 4064657.

It is an arithmetic number, because the mean of its divisors is an integer number (146322720).

Almost surely, 2^1121807382 is an apocalyptic number.

1121807382 is an abundant number, since it is smaller than the sum of its proper divisors (1219356138).

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

1121807382 is a wasteful number, since it uses less digits than its factorization.

1121807382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129067.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 1121807382 is about 33493.3931096866. The cubic root of 1121807382 is about 1039.0571404116.

Adding to 1121807382 its reverse (2837081211), we get a palindrome (3958888593).

The spelling of 1121807382 in words is "one billion, one hundred twenty-one million, eight hundred seven thousand, three hundred eighty-two".