231203031330113 has 4 divisors (see below), whose sum is σ = 231613693908528. Its totient is φ = 230792368751700.

The previous prime is 231203031330109. The next prime is 231203031330151. The reversal of 231203031330113 is 311033130302132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231203031330113 - 2² = 231203031330109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231203031360113) 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, 205331288363 + ... + 205331289488.

It is an arithmetic number, because the mean of its divisors is an integer number (57903423477132).

Almost surely, 2^{231203031330113} is an apocalyptic number.

It is an amenable number.

231203031330113 is a deficient number, since it is larger than the sum of its proper divisors (410662578415).

231203031330113 is an equidigital number, since it uses as much as digits as its factorization.

231203031330113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410662578414.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 231203031330113 its reverse (311033130302132), we get a palindrome (542236161632245).

The spelling of 231203031330113 in words is "two hundred thirty-one trillion, two hundred three billion, thirty-one million, three hundred thirty thousand, one hundred thirteen".