231312033023101 has 4 divisors (see below), whose sum is σ = 231312549064732. Its totient is φ = 231311516981472.

The previous prime is 231312033023077. The next prime is 231312033023221. The reversal of 231312033023101 is 101320330213132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89859687919225 + 141452345103876 = 9479435^2 + 11893374^2 .

It is a cyclic number.

It is not a de Polignac number, because 231312033023101 - 2⁵ = 231312033023069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312033033101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257347866 + ... + 258245131.

It is an arithmetic number, because the mean of its divisors is an integer number (57828137266183).

Almost surely, 2^{231312033023101} is an apocalyptic number.

It is an amenable number.

231312033023101 is a deficient number, since it is larger than the sum of its proper divisors (516041631).

231312033023101 is an equidigital number, since it uses as much as digits as its factorization.

231312033023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516041630.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 231312033023101 its reverse (101320330213132), we get a palindrome (332632363236233).

The spelling of 231312033023101 in words is "two hundred thirty-one trillion, three hundred twelve billion, thirty-three million, twenty-three thousand, one hundred one".