231203013233123 has 4 divisors (see below), whose sum is σ = 231203246023968. Its totient is φ = 231202780442280.

The previous prime is 231203013233113. The next prime is 231203013233173. The reversal of 231203013233123 is 321332310302132.

231203013233123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231203013233123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231203013233113) 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, 114899243 + ... + 116894148.

It is an arithmetic number, because the mean of its divisors is an integer number (57800811505992).

Almost surely, 2^{231203013233123} is an apocalyptic number.

231203013233123 is a deficient number, since it is larger than the sum of its proper divisors (232790845).

231203013233123 is an equidigital number, since it uses as much as digits as its factorization.

231203013233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232790844.

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

Adding to 231203013233123 its reverse (321332310302132), we get a palindrome (552535323535255).

The spelling of 231203013233123 in words is "two hundred thirty-one trillion, two hundred three billion, thirteen million, two hundred thirty-three thousand, one hundred twenty-three".