210312021133 has 4 divisors (see below), whose sum is σ = 210314697120. Its totient is φ = 210309345148.

The previous prime is 210312021121. The next prime is 210312021167. The reversal of 210312021133 is 331120213012.

210312021133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210312021133 - 2³³ = 201722086541 is a prime.

It is a super-2 number, since 2×210312021133² (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 210312021133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210312021433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216423 + ... + 1378516.

It is an arithmetic number, because the mean of its divisors is an integer number (52578674280).

Almost surely, 2^210312021133 is an apocalyptic number.

It is an amenable number.

210312021133 is a deficient number, since it is larger than the sum of its proper divisors (2675987).

210312021133 is an equidigital number, since it uses as much as digits as its factorization.

210312021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675986.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 210312021133 its reverse (331120213012), we get a palindrome (541432234145).

The spelling of 210312021133 in words is "two hundred ten billion, three hundred twelve million, twenty-one thousand, one hundred thirty-three".