30217154309 has 2 divisors, whose sum is σ = 30217154310. Its totient is φ = 30217154308.

The previous prime is 30217154299. The next prime is 30217154329. The reversal of 30217154309 is 90345171203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19515251809 + 10701902500 = 139697^2 + 103450^2 .

It is a cyclic number.

It is not a de Polignac number, because 30217154309 - 2⁴ = 30217154293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30217154329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15108577154 + 15108577155.

It is an arithmetic number, because the mean of its divisors is an integer number (15108577155).

Almost surely, 2^30217154309 is an apocalyptic number.

It is an amenable number.

30217154309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30217154309 is an equidigital number, since it uses as much as digits as its factorization.

30217154309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 30217154309 in words is "thirty billion, two hundred seventeen million, one hundred fifty-four thousand, three hundred nine".