306214106320321 has 2 divisors, whose sum is σ = 306214106320322. Its totient is φ = 306214106320320.

The previous prime is 306214106320273. The next prime is 306214106320357. The reversal of 306214106320321 is 123023601412603.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304295368836096 + 1918737484225 = 17444064^2 + 1385185^2 .

It is a cyclic number.

It is not a de Polignac number, because 306214106320321 - 2²⁷ = 306213972102593 is a prime.

It is not a weakly prime, because it can be changed into another prime (306214106320921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153107053160160 + 153107053160161.

It is an arithmetic number, because the mean of its divisors is an integer number (153107053160161).

Almost surely, 2^{306214106320321} is an apocalyptic number.

It is an amenable number.

306214106320321 is a deficient number, since it is larger than the sum of its proper divisors (1).

306214106320321 is an equidigital number, since it uses as much as digits as its factorization.

306214106320321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 306214106320321 its reverse (123023601412603), we get a palindrome (429237707732924).

The spelling of 306214106320321 in words is "three hundred six trillion, two hundred fourteen billion, one hundred six million, three hundred twenty thousand, three hundred twenty-one".