30020250217 has 2 divisors, whose sum is σ = 30020250218. Its totient is φ = 30020250216.

The previous prime is 30020250191. The next prime is 30020250251. The reversal of 30020250217 is 71205202003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30019374121 + 876096 = 173261^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020250217 - 2³¹ = 27872766569 is a prime.

It is not a weakly prime, because it can be changed into another prime (30020250017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010125108 + 15010125109.

It is an arithmetic number, because the mean of its divisors is an integer number (15010125109).

Almost surely, 2^30020250217 is an apocalyptic number.

It is an amenable number.

30020250217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020250217 is an equidigital number, since it uses as much as digits as its factorization.

30020250217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The spelling of 30020250217 in words is "thirty billion, twenty million, two hundred fifty thousand, two hundred seventeen".