1121076684 has 432 divisors, whose sum is σ = 3903943680. Its totient is φ = 267805440.

The previous prime is 1121076661. The next prime is 1121076707. The reversal of 1121076684 is 4866701211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121076661) and next prime (1121076707).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 13506907 + ... + 13506989.

Almost surely, 2^1121076684 is an apocalyptic number.

1121076684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121076684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951971840).

1121076684 is an abundant number, since it is smaller than the sum of its proper divisors (2782866996).

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

1121076684 is a wasteful number, since it uses less digits than its factorization.

1121076684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1121076684 is about 33482.4832412412. The cubic root of 1121076684 is about 1038.8314920839.

Adding to 1121076684 its reverse (4866701211), we get a palindrome (5987777895).

The spelling of 1121076684 in words is "one billion, one hundred twenty-one million, seventy-six thousand, six hundred eighty-four".