231312203311 has 8 divisors (see below), whose sum is σ = 264362373920. Its totient is φ = 198263425248.

The previous prime is 231312203293. The next prime is 231312203323. The reversal of 231312203311 is 113302213132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231312203311 - 2⁵ = 231312203279 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 (231312203711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36085 + ... + 681121.

It is an arithmetic number, because the mean of its divisors is an integer number (33045296740).

Almost surely, 2^231312203311 is an apocalyptic number.

231312203311 is a deficient number, since it is larger than the sum of its proper divisors (33050170609).

231312203311 is an equidigital number, since it uses as much as digits as its factorization.

231312203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696273.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231312203311 its reverse (113302213132), we get a palindrome (344614416443).

The spelling of 231312203311 in words is "two hundred thirty-one billion, three hundred twelve million, two hundred three thousand, three hundred eleven".