1121304680 has 16 divisors (see below), whose sum is σ = 2522935620. Its totient is φ = 448521856.

The previous prime is 1121304677. The next prime is 1121304719. The reversal of 1121304680 is 864031211.

It can be written as a sum of positive squares in 2 ways, for example, as 1082541604 + 38763076 = 32902^2 + 6226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14016269 + ... + 14016348.

Almost surely, 2^1121304680 is an apocalyptic number.

1121304680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121304680 is an abundant number, since it is smaller than the sum of its proper divisors (1401630940).

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

1121304680 is a wasteful number, since it uses less digits than its factorization.

1121304680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28032628 (or 28032624 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1121304680 is about 33485.8877738070. The cubic root of 1121304680 is about 1038.9019105111.

Adding to 1121304680 its reverse (864031211), we get a palindrome (1985335891).

The spelling of 1121304680 in words is "one billion, one hundred twenty-one million, three hundred four thousand, six hundred eighty".