231233030123231 has 4 divisors (see below), whose sum is σ = 231275465994000. Its totient is φ = 231190594252464.

The previous prime is 231233030123209. The next prime is 231233030123243. The reversal of 231233030123231 is 132321030332132.

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 231233030123231 - 2⁶ = 231233030123167 is a prime.

It is a super-2 number, since 2×231233030123231² (a number of 30 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 = 231233030123194 and 231233030123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231233030120231) 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, 21217927211 + ... + 21217938108.

It is an arithmetic number, because the mean of its divisors is an integer number (57818866498500).

Almost surely, 2^{231233030123231} is an apocalyptic number.

231233030123231 is a deficient number, since it is larger than the sum of its proper divisors (42435870769).

231233030123231 is an equidigital number, since it uses as much as digits as its factorization.

231233030123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42435870768.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 231233030123231 its reverse (132321030332132), we get a palindrome (363554060455363).

The spelling of 231233030123231 in words is "two hundred thirty-one trillion, two hundred thirty-three billion, thirty million, one hundred twenty-three thousand, two hundred thirty-one".