231433350223 has 4 divisors (see below), whose sum is σ = 231512421600. Its totient is φ = 231354278848.

The previous prime is 231433350191. The next prime is 231433350229. The reversal of 231433350223 is 322053334132.

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 231433350223 - 2⁵ = 231433350191 is a prime.

It is a super-2 number, since 2×231433350223² (a number of 24 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 (231433350229) 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, 39531298 + ... + 39537151.

It is an arithmetic number, because the mean of its divisors is an integer number (57878105400).

Almost surely, 2^231433350223 is an apocalyptic number.

231433350223 is a deficient number, since it is larger than the sum of its proper divisors (79071377).

231433350223 is an equidigital number, since it uses as much as digits as its factorization.

231433350223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79071376.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 231433350223 its reverse (322053334132), we get a palindrome (553486684355).

The spelling of 231433350223 in words is "two hundred thirty-one billion, four hundred thirty-three million, three hundred fifty thousand, two hundred twenty-three".