213123411212 has 12 divisors (see below), whose sum is σ = 378532626360. Its totient is φ = 104971232256.

The previous prime is 213123411209. The next prime is 213123411223. The reversal of 213123411212 is 212114321312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397618037 + ... + 397618572.

It is an arithmetic number, because the mean of its divisors is an integer number (31544385530).

Almost surely, 2^213123411212 is an apocalyptic number.

It is an amenable number.

213123411212 is a deficient number, since it is larger than the sum of its proper divisors (165409215148).

213123411212 is a wasteful number, since it uses less digits than its factorization.

213123411212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795236680 (or 795236678 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 213123411212 its reverse (212114321312), we get a palindrome (425237732524).

The spelling of 213123411212 in words is "two hundred thirteen billion, one hundred twenty-three million, four hundred eleven thousand, two hundred twelve".