1321233041 has 2 divisors, whose sum is σ = 1321233042. Its totient is φ = 1321233040.

The previous prime is 1321233019. The next prime is 1321233049. The reversal of 1321233041 is 1403321231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221153025 + 100080016 = 34945^2 + 10004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321233041 - 2¹⁸ = 1320970897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321233049) 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, 660616520 + 660616521.

It is an arithmetic number, because the mean of its divisors is an integer number (660616521).

Almost surely, 2^1321233041 is an apocalyptic number.

It is an amenable number.

1321233041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321233041 is an equidigital number, since it uses as much as digits as its factorization.

1321233041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1321233041 is about 36348.7694564754. The cubic root of 1321233041 is about 1097.3027694072.

Adding to 1321233041 its reverse (1403321231), we get a palindrome (2724554272).

The spelling of 1321233041 in words is "one billion, three hundred twenty-one million, two hundred thirty-three thousand, forty-one".