1321230041 has 2 divisors, whose sum is σ = 1321230042. Its totient is φ = 1321230040.

The previous prime is 1321230023. The next prime is 1321230047. The reversal of 1321230041 is 1400321231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1233414400 + 87815641 = 35120^2 + 9371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321230041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321230047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660615020 + 660615021.

It is an arithmetic number, because the mean of its divisors is an integer number (660615021).

Almost surely, 2^1321230041 is an apocalyptic number.

It is an amenable number.

1321230041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321230041 is an equidigital number, since it uses as much as digits as its factorization.

1321230041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1321230041 is about 36348.7281895804. The cubic root of 1321230041 is about 1097.3019388924.

Adding to 1321230041 its reverse (1400321231), we get a palindrome (2721551272).

The spelling of 1321230041 in words is "one billion, three hundred twenty-one million, two hundred thirty thousand, forty-one".