233203213123 has 4 divisors (see below), whose sum is σ = 233221856560. Its totient is φ = 233184569688.

The previous prime is 233203213081. The next prime is 233203213141. The reversal of 233203213123 is 321312302332.

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

It is a cyclic number.

It is not a de Polignac number, because 233203213123 - 2¹³ = 233203204931 is a prime.

It is a super-2 number, since 2×233203213123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233203213163) 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, 9302943 + ... + 9327976.

It is an arithmetic number, because the mean of its divisors is an integer number (58305464140).

Almost surely, 2^233203213123 is an apocalyptic number.

233203213123 is a deficient number, since it is larger than the sum of its proper divisors (18643437).

233203213123 is a wasteful number, since it uses less digits than its factorization.

233203213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18643436.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 233203213123 its reverse (321312302332), we get a palindrome (554515515455).

The spelling of 233203213123 in words is "two hundred thirty-three billion, two hundred three million, two hundred thirteen thousand, one hundred twenty-three".