212031030133 has 8 divisors (see below), whose sum is σ = 228344750648. Its totient is φ = 195717829824.

The previous prime is 212031030121. The next prime is 212031030137. The reversal of 212031030133 is 331030130212.

It can be written as a sum of positive squares in 4 ways, for example, as 32426285329 + 179604744804 = 180073^2 + 423798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212031030133 - 2⁹ = 212031029621 is a prime.

It is a super-2 number, since 2×212031030133² (a number of 23 digits) contains 22 as substring.

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 212031030133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031030137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294435 + ... + 1449007.

It is an arithmetic number, because the mean of its divisors is an integer number (28543093831).

Almost surely, 2^212031030133 is an apocalyptic number.

It is an amenable number.

212031030133 is a deficient number, since it is larger than the sum of its proper divisors (16313720515).

212031030133 is a wasteful number, since it uses less digits than its factorization.

212031030133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260103.

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

Adding to 212031030133 its reverse (331030130212), we get a palindrome (543061160345).

The spelling of 212031030133 in words is "two hundred twelve billion, thirty-one million, thirty thousand, one hundred thirty-three".