213312043 has 10 divisors (see below), whose sum is σ = 248852044. Its totient is φ = 182836836.

The previous prime is 213312037. The next prime is 213312079. The reversal of 213312043 is 340213312.

It is not a de Polignac number, because 213312043 - 2⁹ = 213311531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213312043.

It is not an unprimeable number, because it can be changed into a prime (213312013) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42021 + ... + 46822.

Almost surely, 2^213312043 is an apocalyptic number.

213312043 is a deficient number, since it is larger than the sum of its proper divisors (35540001).

213312043 is an frugal number, since it uses more digits than its factorization.

213312043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88871 (or 88850 counting only the distinct ones).

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

The square root of 213312043 is about 14605.2060238807. The cubic root of 213312043 is about 597.5007550045.

Adding to 213312043 its reverse (340213312), we get a palindrome (553525355).

The spelling of 213312043 in words is "two hundred thirteen million, three hundred twelve thousand, forty-three".