203233231231 has 4 divisors (see below), whose sum is σ = 204024022272. Its totient is φ = 202442440192.

The previous prime is 203233231043. The next prime is 203233231259. The reversal of 203233231231 is 132132332302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132132332302 = 2 ⋅66066166151.

It is a cyclic number.

It is not a de Polignac number, because 203233231231 - 2¹¹ = 203233229183 is a prime.

It is a super-2 number, since 2×203233231231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203233231196 and 203233231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203233231261) 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, 395395135 + ... + 395395648.

It is an arithmetic number, because the mean of its divisors is an integer number (51006005568).

Almost surely, 2^203233231231 is an apocalyptic number.

203233231231 is a deficient number, since it is larger than the sum of its proper divisors (790791041).

203233231231 is an equidigital number, since it uses as much as digits as its factorization.

203233231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790791040.

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

Adding to 203233231231 its reverse (132132332302), we get a palindrome (335365563533).

The spelling of 203233231231 in words is "two hundred three billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty-one".