231333112331 has 16 divisors (see below), whose sum is σ = 235943474400. Its totient is φ = 226746777600.

The previous prime is 231333112313. The next prime is 231333112333. The reversal of 231333112331 is 133211333132.

231333112331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231333112331 - 2³⁴ = 214153243147 is a prime.

It is a super-2 number, since 2×231333112331² (a number of 24 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 231333112331.

It is not an unprimeable number, because it can be changed into a prime (231333112333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30591791 + ... + 30599351.

It is an arithmetic number, because the mean of its divisors is an integer number (14746467150).

Almost surely, 2^231333112331 is an apocalyptic number.

231333112331 is a deficient number, since it is larger than the sum of its proper divisors (4610362069).

231333112331 is an equidigital number, since it uses as much as digits as its factorization.

231333112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070.

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

Adding to 231333112331 its reverse (133211333132), we get a palindrome (364544445463).

The spelling of 231333112331 in words is "two hundred thirty-one billion, three hundred thirty-three million, one hundred twelve thousand, three hundred thirty-one".