213123222333 has 60 divisors (see below), whose sum is σ = 372418136640. Its totient is φ = 121103933328.

The previous prime is 213123222317. The next prime is 213123222341. The reversal of 213123222333 is 333222321312.

213123222333 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 2 + 322 + 2 + 333 = 666.

It is not a de Polignac number, because 213123222333 - 2⁴ = 213123222317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213123222297 and 213123222306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213123222373) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 560460 + ... + 860442.

It is an arithmetic number, because the mean of its divisors is an integer number (6206968944).

Almost surely, 2^213123222333 is an apocalyptic number.

It is an amenable number.

213123222333 is a deficient number, since it is larger than the sum of its proper divisors (159294914307).

213123222333 is a wasteful number, since it uses less digits than its factorization.

213123222333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300188 (or 300172 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 213123222333 its reverse (333222321312), we get a palindrome (546345543645).

The spelling of 213123222333 in words is "two hundred thirteen billion, one hundred twenty-three million, two hundred twenty-two thousand, three hundred thirty-three".