231321130030123 has 4 divisors (see below), whose sum is σ = 264367005748720. Its totient is φ = 198275254311528.

The previous prime is 231321130030063. The next prime is 231321130030129. The reversal of 231321130030123 is 321030031123132.

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 231321130030123 - 2¹³ = 231321130021931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231321130030129) 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, 16522937859288 + ... + 16522937859301.

It is an arithmetic number, because the mean of its divisors is an integer number (66091751437180).

Almost surely, 2^{231321130030123} is an apocalyptic number.

231321130030123 is a deficient number, since it is larger than the sum of its proper divisors (33045875718597).

231321130030123 is an equidigital number, since it uses as much as digits as its factorization.

231321130030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33045875718596.

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

Adding to 231321130030123 its reverse (321030031123132), we get a palindrome (552351161153255).

The spelling of 231321130030123 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, one hundred thirty million, thirty thousand, one hundred twenty-three".