302021120549 has 2 divisors, whose sum is σ = 302021120550. Its totient is φ = 302021120548.

The previous prime is 302021120509. The next prime is 302021120551. The reversal of 302021120549 is 945021120203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256560484324 + 45460636225 = 506518^2 + 213215^2 .

It is a cyclic number.

It is not a de Polignac number, because 302021120549 - 2⁸ = 302021120293 is a prime.

It is a super-2 number, since 2×302021120549² (a number of 24 digits) contains 22 as substring.

Together with 302021120551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302021120509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151010560274 + 151010560275.

It is an arithmetic number, because the mean of its divisors is an integer number (151010560275).

Almost surely, 2^302021120549 is an apocalyptic number.

It is an amenable number.

302021120549 is a deficient number, since it is larger than the sum of its proper divisors (1).

302021120549 is an equidigital number, since it uses as much as digits as its factorization.

302021120549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 302021120549 in words is "three hundred two billion, twenty-one million, one hundred twenty thousand, five hundred forty-nine".