211213103333 has 4 divisors (see below), whose sum is σ = 212034944460. Its totient is φ = 210391262208.

The previous prime is 211213103327. The next prime is 211213103347. The reversal of 211213103333 is 333301312112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 209779572289 + 1433531044 = 458017^2 + 37862^2 .

It is a cyclic number.

It is not a de Polignac number, because 211213103333 - 2²² = 211208909029 is a prime.

It is a super-2 number, since 2×211213103333² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211213103299 and 211213103308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213108333) 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, 410920178 + ... + 410920691.

It is an arithmetic number, because the mean of its divisors is an integer number (53008736115).

Almost surely, 2^211213103333 is an apocalyptic number.

It is an amenable number.

211213103333 is a deficient number, since it is larger than the sum of its proper divisors (821841127).

211213103333 is an equidigital number, since it uses as much as digits as its factorization.

211213103333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821841126.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 211213103333 its reverse (333301312112), we get a palindrome (544514415445).

The spelling of 211213103333 in words is "two hundred eleven billion, two hundred thirteen million, one hundred three thousand, three hundred thirty-three".