232001213 has 4 divisors (see below), whose sum is σ = 232071708. Its totient is φ = 231930720.

The previous prime is 232001201. The next prime is 232001219. The reversal of 232001213 is 312100232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21548164 + 210453049 = 4642^2 + 14507^2 .

It is a cyclic number.

It is not a de Polignac number, because 232001213 - 2⁴ = 232001197 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 (232001219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30056 + ... + 36977.

It is an arithmetic number, because the mean of its divisors is an integer number (58017927).

Almost surely, 2^232001213 is an apocalyptic number.

It is an amenable number.

232001213 is a deficient number, since it is larger than the sum of its proper divisors (70495).

232001213 is an equidigital number, since it uses as much as digits as its factorization.

232001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70494.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 232001213 is about 15231.5860303515. The cubic root of 232001213 is about 614.4644360319.

Adding to 232001213 its reverse (312100232), we get a palindrome (544101445).

The spelling of 232001213 in words is "two hundred thirty-two million, one thousand, two hundred thirteen".