1020020041 has 2 divisors, whose sum is σ = 1020020042. Its totient is φ = 1020020040.

The previous prime is 1020019969. The next prime is 1020020047. The reversal of 1020020041 is 1400200201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907214400 + 112805641 = 30120^2 + 10621^2 .

It is an emirp because it is prime and its reverse (1400200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020020041 - 2⁹ = 1020019529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020020047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010020 + 510010021.

It is an arithmetic number, because the mean of its divisors is an integer number (510010021).

Almost surely, 2^1020020041 is an apocalyptic number.

It is an amenable number.

1020020041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020020041 is an equidigital number, since it uses as much as digits as its factorization.

1020020041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1020020041 is about 31937.7525978269. The cubic root of 1020020041 is about 1006.6293022378.

Adding to 1020020041 its reverse (1400200201), we get a palindrome (2420220242).

The spelling of 1020020041 in words is "one billion, twenty million, twenty thousand, forty-one".