1021442041 has 2 divisors, whose sum is σ = 1021442042. Its totient is φ = 1021442040.

The previous prime is 1021442027. The next prime is 1021442047. The reversal of 1021442041 is 1402441201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1021441600 + 441 = 31960^2 + 21^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021442041 - 2¹⁵ = 1021409273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021442047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510721020 + 510721021.

It is an arithmetic number, because the mean of its divisors is an integer number (510721021).

Almost surely, 2^1021442041 is an apocalyptic number.

It is an amenable number.

1021442041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021442041 is an equidigital number, since it uses as much as digits as its factorization.

1021442041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1021442041 is about 31960.0068992483. The cubic root of 1021442041 is about 1007.0968623985.

Adding to 1021442041 its reverse (1402441201), we get a palindrome (2423883242).

The spelling of 1021442041 in words is "one billion, twenty-one million, four hundred forty-two thousand, forty-one".