30521304212249 has 2 divisors, whose sum is σ = 30521304212250. Its totient is φ = 30521304212248.

The previous prime is 30521304212219. The next prime is 30521304212317. The reversal of 30521304212249 is 94221240312503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30520851586624 + 452625625 = 5524568^2 + 21275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30521304212249 is a prime.

It is not a weakly prime, because it can be changed into another prime (30521304212209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260652106124 + 15260652106125.

It is an arithmetic number, because the mean of its divisors is an integer number (15260652106125).

Almost surely, 2^{30521304212249} is an apocalyptic number.

It is an amenable number.

30521304212249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30521304212249 is an equidigital number, since it uses as much as digits as its factorization.

30521304212249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 30521304212249 in words is "thirty trillion, five hundred twenty-one billion, three hundred four million, two hundred twelve thousand, two hundred forty-nine".