1101101321 has 2 divisors, whose sum is σ = 1101101322. Its totient is φ = 1101101320.

The previous prime is 1101101317. The next prime is 1101101327. The reversal of 1101101321 is 1231011011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081423225 + 19678096 = 32885^2 + 4436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101101321 - 2² = 1101101317 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101101327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550550660 + 550550661.

It is an arithmetic number, because the mean of its divisors is an integer number (550550661).

Almost surely, 2^1101101321 is an apocalyptic number.

It is an amenable number.

1101101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101101321 is an equidigital number, since it uses as much as digits as its factorization.

1101101321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1101101321 is about 33182.8467886648. The cubic root of 1101101321 is about 1032.6245071435.

Adding to 1101101321 its reverse (1231011011), we get a palindrome (2332112332).

The spelling of 1101101321 in words is "one billion, one hundred one million, one hundred one thousand, three hundred twenty-one".