233232320213 has 4 divisors (see below), whose sum is σ = 235372066380. Its totient is φ = 231092574048.

The previous prime is 233232320147. The next prime is 233232320227. The reversal of 233232320213 is 312023232332.

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 204644950129 + 28587370084 = 452377^2 + 169078^2 .

It is a cyclic number.

It is not a de Polignac number, because 233232320213 - 2²⁸ = 232963884757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233232320813) 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, 1069872920 + ... + 1069873137.

It is an arithmetic number, because the mean of its divisors is an integer number (58843016595).

Almost surely, 2^233232320213 is an apocalyptic number.

It is an amenable number.

233232320213 is a deficient number, since it is larger than the sum of its proper divisors (2139746167).

233232320213 is a wasteful number, since it uses less digits than its factorization.

233232320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139746166.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 233232320213 its reverse (312023232332), we get a palindrome (545255552545).

The spelling of 233232320213 in words is "two hundred thirty-three billion, two hundred thirty-two million, three hundred twenty thousand, two hundred thirteen".