1201153321 has 2 divisors, whose sum is σ = 1201153322. Its totient is φ = 1201153320.

The previous prime is 1201153297. The next prime is 1201153397. The reversal of 1201153321 is 1233511021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104897600 + 96255721 = 33240^2 + 9811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201153321 - 2¹³ = 1201145129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201153721) 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 as a sum of consecutive naturals, namely, 600576660 + 600576661.

It is an arithmetic number, because the mean of its divisors is an integer number (600576661).

Almost surely, 2^1201153321 is an apocalyptic number.

It is an amenable number.

1201153321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201153321 is an equidigital number, since it uses as much as digits as its factorization.

1201153321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1201153321 is about 34657.6589082413. The cubic root of 1201153321 is about 1062.9989008537.

Adding to 1201153321 its reverse (1233511021), we get a palindrome (2434664342).

The spelling of 1201153321 in words is "one billion, two hundred one million, one hundred fifty-three thousand, three hundred twenty-one".