213123133330 has 8 divisors (see below), whose sum is σ = 383621640012. Its totient is φ = 85249253328.

The previous prime is 213123133313. The next prime is 213123133339. The reversal of 213123133330 is 33331321312.

It can be written as a sum of positive squares in 2 ways, for example, as 200961234369 + 12161898961 = 448287^2 + 110281^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 213123133295 and 213123133304.

It is not an unprimeable number, because it can be changed into a prime (213123133339) 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, 10656156657 + ... + 10656156676.

Almost surely, 2^213123133330 is an apocalyptic number.

213123133330 is a deficient number, since it is larger than the sum of its proper divisors (170498506682).

213123133330 is a wasteful number, since it uses less digits than its factorization.

213123133330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21312313340.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 213123133330 its reverse (33331321312), we get a palindrome (246454454642).

The spelling of 213123133330 in words is "two hundred thirteen billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred thirty".