30520322153 has 2 divisors, whose sum is σ = 30520322154. Its totient is φ = 30520322152.

The previous prime is 30520322143. The next prime is 30520322177. The reversal of 30520322153 is 35122302503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30072068569 + 448253584 = 173413^2 + 21172^2 .

It is a cyclic number.

It is not a de Polignac number, because 30520322153 - 2⁴ = 30520322137 is a prime.

It is not a weakly prime, because it can be changed into another prime (30520322123) 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, 15260161076 + 15260161077.

It is an arithmetic number, because the mean of its divisors is an integer number (15260161077).

Almost surely, 2^30520322153 is an apocalyptic number.

It is an amenable number.

30520322153 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520322153 is an equidigital number, since it uses as much as digits as its factorization.

30520322153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 30520322153 its reverse (35122302503), we get a palindrome (65642624656).

The spelling of 30520322153 in words is "thirty billion, five hundred twenty million, three hundred twenty-two thousand, one hundred fifty-three".