1231042441 has 2 divisors, whose sum is σ = 1231042442. Its totient is φ = 1231042440.

The previous prime is 1231042391. The next prime is 1231042451. The reversal of 1231042441 is 1442401321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923916816 + 307125625 = 30396^2 + 17525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231042441 - 2¹³ = 1231034249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231042451) 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, 615521220 + 615521221.

It is an arithmetic number, because the mean of its divisors is an integer number (615521221).

Almost surely, 2^1231042441 is an apocalyptic number.

It is an amenable number.

1231042441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231042441 is an equidigital number, since it uses as much as digits as its factorization.

1231042441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1231042441 is about 35086.2144011006. The cubic root of 1231042441 is about 1071.7438710252.

Adding to 1231042441 its reverse (1442401321), we get a palindrome (2673443762).

The spelling of 1231042441 in words is "one billion, two hundred thirty-one million, forty-two thousand, four hundred forty-one".