1121232628 has 12 divisors (see below), whose sum is σ = 1962438660. Its totient is φ = 560535872.

The previous prime is 1121232587. The next prime is 1121232631. The reversal of 1121232628 is 8262321211.

It can be written as a sum of positive squares in 2 ways, for example, as 641710224 + 479522404 = 25332^2 + 21898^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121232596 and 1121232605.

It is a congruent number.

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, 20250 + ... + 51502.

It is an arithmetic number, because the mean of its divisors is an integer number (163536555).

Almost surely, 2^1121232628 is an apocalyptic number.

It is an amenable number.

1121232628 is a deficient number, since it is larger than the sum of its proper divisors (841206032).

1121232628 is a wasteful number, since it uses less digits than its factorization.

1121232628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40226 (or 40224 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1121232628 is about 33484.8119003228. The cubic root of 1121232628 is about 1038.8796576940.

Adding to 1121232628 its reverse (8262321211), we get a palindrome (9383553839).

The spelling of 1121232628 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, six hundred twenty-eight".