231310222312331 has 8 divisors (see below), whose sum is σ = 237563814161520. Its totient is φ = 225056733843168.

The previous prime is 231310222312291. The next prime is 231310222312333. The reversal of 231310222312331 is 133213222013132.

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 231310222312331 - 2¹⁴ = 231310222295947 is a prime.

It is a super-2 number, since 2×231310222312331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231310222312294 and 231310222312303.

It is not an unprimeable number, because it can be changed into a prime (231310222312333) 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, 21298901 + ... + 30269846.

It is an arithmetic number, because the mean of its divisors is an integer number (29695476770190).

Almost surely, 2^{231310222312331} is an apocalyptic number.

231310222312331 is a deficient number, since it is larger than the sum of its proper divisors (6253591849189).

231310222312331 is a wasteful number, since it uses less digits than its factorization.

231310222312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51690013.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 231310222312331 its reverse (133213222013132), we get a palindrome (364523444325463).

The spelling of 231310222312331 in words is "two hundred thirty-one trillion, three hundred ten billion, two hundred twenty-two million, three hundred twelve thousand, three hundred thirty-one".