1133020231 has 8 divisors (see below), whose sum is σ = 1301388800. Its totient is φ = 966278808.

The previous prime is 1133020219. The next prime is 1133020297. The reversal of 1133020231 is 1320203311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1133020231 - 2¹⁷ = 1132889159 is a prime.

It is a super-2 number, since 2×1133020231² = 2567469687710586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405291 + ... + 408076.

It is an arithmetic number, because the mean of its divisors is an integer number (162673600).

Almost surely, 2^1133020231 is an apocalyptic number.

1133020231 is a deficient number, since it is larger than the sum of its proper divisors (168368569).

1133020231 is an equidigital number, since it uses as much as digits as its factorization.

1133020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813573.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1133020231 is about 33660.3658773935. The cubic root of 1133020231 is about 1042.5075803745.

Adding to 1133020231 its reverse (1320203311), we get a palindrome (2453223542).

The spelling of 1133020231 in words is "one billion, one hundred thirty-three million, twenty thousand, two hundred thirty-one".