213004312 has 32 divisors (see below), whose sum is σ = 406216800. Its totient is φ = 104696064.

The previous prime is 213004277. The next prime is 213004313. The reversal of 213004312 is 213400312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213004313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118573 + ... + 120355.

It is an arithmetic number, because the mean of its divisors is an integer number (12694275).

Almost surely, 2^213004312 is an apocalyptic number.

It is an amenable number.

213004312 is a deficient number, since it is larger than the sum of its proper divisors (193212488).

213004312 is a wasteful number, since it uses less digits than its factorization.

213004312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213004312 is about 14594.6672452646. The cubic root of 213004312 is about 597.2132919497.

Adding to 213004312 its reverse (213400312), we get a palindrome (426404624).

The spelling of 213004312 in words is "two hundred thirteen million, four thousand, three hundred twelve".