30205320445 has 16 divisors (see below), whose sum is σ = 36326545920. Its totient is φ = 24110869824.

The previous prime is 30205320421. The next prime is 30205320461. The reversal of 30205320445 is 54402350203.

It is a cyclic number.

It is not a de Polignac number, because 30205320445 - 2⁵ = 30205320413 is a prime.

It is a super-2 number, since 2×30205320445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 8990676 + ... + 8994034.

It is an arithmetic number, because the mean of its divisors is an integer number (2270409120).

Almost surely, 2^30205320445 is an apocalyptic number.

It is an amenable number.

30205320445 is a deficient number, since it is larger than the sum of its proper divisors (6121225475).

30205320445 is a wasteful number, since it uses less digits than its factorization.

30205320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 30205320445 its reverse (54402350203), we get a palindrome (84607670648).

The spelling of 30205320445 in words is "thirty billion, two hundred five million, three hundred twenty thousand, four hundred forty-five".