232120213 has 4 divisors (see below), whose sum is σ = 249975628. Its totient is φ = 214264800.

The previous prime is 232120211. The next prime is 232120223. The reversal of 232120213 is 312021232.

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 154803364 + 77316849 = 12442^2 + 8793^2 .

It is a cyclic number.

It is not a de Polignac number, because 232120213 - 2¹ = 232120211 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 (232120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8927688 + ... + 8927713.

It is an arithmetic number, because the mean of its divisors is an integer number (62493907).

Almost surely, 2^232120213 is an apocalyptic number.

It is an amenable number.

232120213 is a deficient number, since it is larger than the sum of its proper divisors (17855415).

232120213 is a wasteful number, since it uses less digits than its factorization.

232120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17855414.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232120213 is about 15235.4918857253. The cubic root of 232120213 is about 614.5694768182.

Adding to 232120213 its reverse (312021232), we get a palindrome (544141445).

The spelling of 232120213 in words is "two hundred thirty-two million, one hundred twenty thousand, two hundred thirteen".