203223110231 has 4 divisors (see below), whose sum is σ = 209778694464. Its totient is φ = 196667526000.

The previous prime is 203223110213. The next prime is 203223110239. The reversal of 203223110231 is 132011322302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132011322302 = 2 ⋅66005661151.

It is a cyclic number.

It is not a de Polignac number, because 203223110231 - 2¹⁰ = 203223109207 is a prime.

It is a super-2 number, since 2×203223110231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203223110239) 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, 3277792070 + ... + 3277792131.

It is an arithmetic number, because the mean of its divisors is an integer number (52444673616).

Almost surely, 2^203223110231 is an apocalyptic number.

203223110231 is a deficient number, since it is larger than the sum of its proper divisors (6555584233).

203223110231 is an equidigital number, since it uses as much as digits as its factorization.

203223110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555584232.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203223110231 its reverse (132011322302), we get a palindrome (335234432533).

The spelling of 203223110231 in words is "two hundred three billion, two hundred twenty-three million, one hundred ten thousand, two hundred thirty-one".