1101133321 has 4 divisors (see below), whose sum is σ = 1101524292. Its totient is φ = 1100742352.

The previous prime is 1101133309. The next prime is 1101133381. The reversal of 1101133321 is 1233311011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 648975625 + 452157696 = 25475^2 + 21264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101133321 - 2¹⁹ = 1100609033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101133295 and 1101133304.

It is not an unprimeable number, because it can be changed into a prime (1101133381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191230 + ... + 196903.

It is an arithmetic number, because the mean of its divisors is an integer number (275381073).

Almost surely, 2^1101133321 is an apocalyptic number.

It is an amenable number.

1101133321 is a deficient number, since it is larger than the sum of its proper divisors (390971).

1101133321 is an equidigital number, since it uses as much as digits as its factorization.

1101133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390970.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1101133321 is about 33183.3289619954. The cubic root of 1101133321 is about 1032.6345103598.

Adding to 1101133321 its reverse (1233311011), we get a palindrome (2334444332).

The spelling of 1101133321 in words is "one billion, one hundred one million, one hundred thirty-three thousand, three hundred twenty-one".