302040342432221 has 2 divisors, whose sum is σ = 302040342432222. Its totient is φ = 302040342432220.

The previous prime is 302040342432167. The next prime is 302040342432239. The reversal of 302040342432221 is 122234243040203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171459671136121 + 130580671296100 = 13094261^2 + 11427190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302040342432221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302040342434221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151020171216110 + 151020171216111.

It is an arithmetic number, because the mean of its divisors is an integer number (151020171216111).

Almost surely, 2^{302040342432221} is an apocalyptic number.

It is an amenable number.

302040342432221 is a deficient number, since it is larger than the sum of its proper divisors (1).

302040342432221 is an equidigital number, since it uses as much as digits as its factorization.

302040342432221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 302040342432221 its reverse (122234243040203), we get a palindrome (424274585472424).

The spelling of 302040342432221 in words is "three hundred two trillion, forty billion, three hundred forty-two million, four hundred thirty-two thousand, two hundred twenty-one".