30203221133 has 2 divisors, whose sum is σ = 30203221134. Its totient is φ = 30203221132.

The previous prime is 30203221091. The next prime is 30203221163. The reversal of 30203221133 is 33112230203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18365128324 + 11838092809 = 135518^2 + 108803^2 .

It is a cyclic number.

It is not a de Polignac number, because 30203221133 - 2⁸ = 30203220877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30203221163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101610566 + 15101610567.

It is an arithmetic number, because the mean of its divisors is an integer number (15101610567).

Almost surely, 2^30203221133 is an apocalyptic number.

It is an amenable number.

30203221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30203221133 is an equidigital number, since it uses as much as digits as its factorization.

30203221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30203221133 its reverse (33112230203), we get a palindrome (63315451336).

The spelling of 30203221133 in words is "thirty billion, two hundred three million, two hundred twenty-one thousand, one hundred thirty-three".