213012316 has 24 divisors (see below), whose sum is σ = 407272320. Its totient is φ = 96678000.

The previous prime is 213012313. The next prime is 213012323. The reversal of 213012316 is 613210312.

It is a junction number, because it is equal to n+sod(n) for n = 213012293 and 213012302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012311) 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, 29241 + ... + 35791.

It is an arithmetic number, because the mean of its divisors is an integer number (16969680).

Almost surely, 2^213012316 is an apocalyptic number.

It is an amenable number.

213012316 is a deficient number, since it is larger than the sum of its proper divisors (194260004).

213012316 is a wasteful number, since it uses less digits than its factorization.

213012316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305 (or 7303 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 213012316 is about 14594.9414524348. The cubic root of 213012316 is about 597.2207722917.

Adding to 213012316 its reverse (613210312), we get a palindrome (826222628).

The spelling of 213012316 in words is "two hundred thirteen million, twelve thousand, three hundred sixteen".