302420402161 has 2 divisors, whose sum is σ = 302420402162. Its totient is φ = 302420402160.

The previous prime is 302420402153. The next prime is 302420402173. The reversal of 302420402161 is 161204024203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299925999025 + 2494403136 = 547655^2 + 49944^2 .

It is a cyclic number.

It is not a de Polignac number, because 302420402161 - 2³ = 302420402153 is a prime.

It is not a weakly prime, because it can be changed into another prime (302420402261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151210201080 + 151210201081.

It is an arithmetic number, because the mean of its divisors is an integer number (151210201081).

Almost surely, 2^302420402161 is an apocalyptic number.

It is an amenable number.

302420402161 is a deficient number, since it is larger than the sum of its proper divisors (1).

302420402161 is an equidigital number, since it uses as much as digits as its factorization.

302420402161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 302420402161 its reverse (161204024203), we get a palindrome (463624426364).

The spelling of 302420402161 in words is "three hundred two billion, four hundred twenty million, four hundred two thousand, one hundred sixty-one".