1121521333 has 2 divisors, whose sum is σ = 1121521334. Its totient is φ = 1121521332.

The previous prime is 1121521327. The next prime is 1121521363. The reversal of 1121521333 is 3331251211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117765489 + 3755844 = 33433^2 + 1938^2 .

It is an emirp because it is prime and its reverse (3331251211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121521333 - 2⁵ = 1121521301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121521363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560760666 + 560760667.

It is an arithmetic number, because the mean of its divisors is an integer number (560760667).

Almost surely, 2^1121521333 is an apocalyptic number.

It is an amenable number.

1121521333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121521333 is an equidigital number, since it uses as much as digits as its factorization.

1121521333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 22.

The square root of 1121521333 is about 33489.1226071989. The cubic root of 1121521333 is about 1038.9688167156.

Adding to 1121521333 its reverse (3331251211), we get a palindrome (4452772544).

The spelling of 1121521333 in words is "one billion, one hundred twenty-one million, five hundred twenty-one thousand, three hundred thirty-three".