1031133228 has 12 divisors (see below), whose sum is σ = 2405977560. Its totient is φ = 343711072.

The previous prime is 1031133227. The next prime is 1031133269. The reversal of 1031133228 is 8223311301.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1031133198 and 1031133207.

It is not an unprimeable number, because it can be changed into a prime (1031133223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42963873 + ... + 42963896.

It is an arithmetic number, because the mean of its divisors is an integer number (200498130).

Almost surely, 2^1031133228 is an apocalyptic number.

It is an amenable number.

1031133228 is an abundant number, since it is smaller than the sum of its proper divisors (1374844332).

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

1031133228 is a wasteful number, since it uses less digits than its factorization.

1031133228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85927776 (or 85927774 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1031133228 is about 32111.2632576173. The cubic root of 1031133228 is about 1010.2718700854.

Adding to 1031133228 its reverse (8223311301), we get a palindrome (9254444529).

The spelling of 1031133228 in words is "one billion, thirty-one million, one hundred thirty-three thousand, two hundred twenty-eight".