1121052280 has 32 divisors (see below), whose sum is σ = 2548380240. Its totient is φ = 443796480.

The previous prime is 1121052263. The next prime is 1121052329. The reversal of 1121052280 is 822501211.

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, 140586 + ... + 148345.

Almost surely, 2^1121052280 is an apocalyptic number.

1121052280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121052280 is an abundant number, since it is smaller than the sum of its proper divisors (1427327960).

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

1121052280 is a wasteful number, since it uses less digits than its factorization.

1121052280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289039 (or 289035 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 1121052280 is about 33482.1188098961. The cubic root of 1121052280 is about 1038.8239541435.

Adding to 1121052280 its reverse (822501211), we get a palindrome (1943553491).

The spelling of 1121052280 in words is "one billion, one hundred twenty-one million, fifty-two thousand, two hundred eighty".