213230999 has 8 divisors (see below), whose sum is σ = 223311840. Its totient is φ = 203217696.

The previous prime is 213230987. The next prime is 213231013. The reversal of 213230999 is 999032312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-213230999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213230959) 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, 10364 + ... + 23105.

It is an arithmetic number, because the mean of its divisors is an integer number (27913980).

Almost surely, 2^213230999 is an apocalyptic number.

213230999 is a deficient number, since it is larger than the sum of its proper divisors (10080841).

213230999 is a wasteful number, since it uses less digits than its factorization.

213230999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33769.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 213230999 is about 14602.4312701687. The cubic root of 213230999 is about 597.4250756001.

The spelling of 213230999 in words is "two hundred thirteen million, two hundred thirty thousand, nine hundred ninety-nine".