231203232303311 has 4 divisors (see below), whose sum is σ = 231216127810800. Its totient is φ = 231190336795824.

The previous prime is 231203232303299. The next prime is 231203232303317. The reversal of 231203232303311 is 113303232302132.

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-231203232303311 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 (231203232303317) 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, 6447726851 + ... + 6447762708.

It is an arithmetic number, because the mean of its divisors is an integer number (57804031952700).

Almost surely, 2^{231203232303311} is an apocalyptic number.

231203232303311 is a deficient number, since it is larger than the sum of its proper divisors (12895507489).

231203232303311 is a wasteful number, since it uses less digits than its factorization.

231203232303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12895507488.

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

Adding to 231203232303311 its reverse (113303232302132), we get a palindrome (344506464605443).

The spelling of 231203232303311 in words is "two hundred thirty-one trillion, two hundred three billion, two hundred thirty-two million, three hundred three thousand, three hundred eleven".