1121167684 has 96 divisors (see below), whose sum is σ = 2472673280. Its totient is φ = 433060992.

The previous prime is 1121167667. The next prime is 1121167699. The reversal of 1121167684 is 4867611211.

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 31 ways as a sum of consecutive naturals, for example, 3651859 + ... + 3652165.

Almost surely, 2^1121167684 is an apocalyptic number.

1121167684 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 1121167684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236336640).

1121167684 is an abundant number, since it is smaller than the sum of its proper divisors (1351505596).

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

1121167684 is a wasteful number, since it uses less digits than its factorization.

1121167684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1121167684 is about 33483.8421331842. The cubic root of 1121167684 is about 1038.8595993221.

Adding to 1121167684 its reverse (4867611211), we get a palindrome (5988778895).

The spelling of 1121167684 in words is "one billion, one hundred twenty-one million, one hundred sixty-seven thousand, six hundred eighty-four".