30203211133 has 4 divisors (see below), whose sum is σ = 30203561020. Its totient is φ = 30202861248.

The previous prime is 30203211121. The next prime is 30203211151. The reversal of 30203211133 is 33111230203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33111230203 = 31723 ⋅1043761.

It can be written as a sum of positive squares in 2 ways, for example, as 2201204889 + 28002006244 = 46917^2 + 167338^2 .

It is a cyclic number.

It is not a de Polignac number, because 30203211133 - 2²¹ = 30201113981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30203211133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203211163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57403 + ... + 252391.

It is an arithmetic number, because the mean of its divisors is an integer number (7550890255).

Almost surely, 2^30203211133 is an apocalyptic number.

It is an amenable number.

30203211133 is a deficient number, since it is larger than the sum of its proper divisors (349887).

30203211133 is a wasteful number, since it uses less digits than its factorization.

30203211133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349886.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30203211133 its reverse (33111230203), we get a palindrome (63314441336).

The spelling of 30203211133 in words is "thirty billion, two hundred three million, two hundred eleven thousand, one hundred thirty-three".