213430312 has 16 divisors (see below), whose sum is σ = 401091840. Its totient is φ = 106472496.

The previous prime is 213430279. The next prime is 213430333. The reversal of 213430312 is 213034312.

It is a self number, because there is not a number n which added to its sum of digits gives 213430312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26568 + ... + 33655.

It is an arithmetic number, because the mean of its divisors is an integer number (25068240).

Almost surely, 2^213430312 is an apocalyptic number.

It is an amenable number.

213430312 is a deficient number, since it is larger than the sum of its proper divisors (187661528).

213430312 is a wasteful number, since it uses less digits than its factorization.

213430312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60672 (or 60668 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213430312 is about 14609.2543273091. The cubic root of 213430312 is about 597.6111609616.

Adding to 213430312 its reverse (213034312), we get a palindrome (426464624).

The spelling of 213430312 in words is "two hundred thirteen million, four hundred thirty thousand, three hundred twelve".