420102041 has 2 divisors, whose sum is σ = 420102042. Its totient is φ = 420102040.

The previous prime is 420101999. The next prime is 420102043. The reversal of 420102041 is 140201024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309936025 + 110166016 = 17605^2 + 10496^2 .

It is a cyclic number.

It is not a de Polignac number, because 420102041 - 2¹⁸ = 419839897 is a prime.

Together with 420102043, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420102043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210051020 + 210051021.

It is an arithmetic number, because the mean of its divisors is an integer number (210051021).

Almost surely, 2^420102041 is an apocalyptic number.

It is an amenable number.

420102041 is a deficient number, since it is larger than the sum of its proper divisors (1).

420102041 is an equidigital number, since it uses as much as digits as its factorization.

420102041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 420102041 is about 20496.3909262094. The cubic root of 420102041 is about 748.9478823845.

Adding to 420102041 its reverse (140201024), we get a palindrome (560303065).

The spelling of 420102041 in words is "four hundred twenty million, one hundred two thousand, forty-one".