231310121322331 has 8 divisors (see below), whose sum is σ = 244917109458000. Its totient is φ = 217703189899008.

The previous prime is 231310121322277. The next prime is 231310121322347. The reversal of 231310121322331 is 133223121013132.

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

It is a cyclic number.

It is not a de Polignac number, because 231310121322331 - 2³⁵ = 231275761583963 is a prime.

It is a super-2 number, since 2×231310121322331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231310121322331.

It is not an unprimeable number, because it can be changed into a prime (231310121328331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5633721 + ... + 22234186.

It is an arithmetic number, because the mean of its divisors is an integer number (30614638682250).

Almost surely, 2^{231310121322331} is an apocalyptic number.

231310121322331 is a deficient number, since it is larger than the sum of its proper divisors (13606988135669).

231310121322331 is a wasteful number, since it uses less digits than its factorization.

231310121322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28356173.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 231310121322331 its reverse (133223121013132), we get a palindrome (364533242335463).

The spelling of 231310121322331 in words is "two hundred thirty-one trillion, three hundred ten billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred thirty-one".