12312323031331 has 32 divisors (see below), whose sum is σ = 13450642732800. Its totient is φ = 11233044282240.

The previous prime is 12312323031259. The next prime is 12312323031413. The reversal of 12312323031331 is 13313032321321.

It is a happy number.

It is not a de Polignac number, because 12312323031331 - 2¹⁷ = 12312322900259 is a prime.

It is a super-2 number, since 2×12312323031331² (a number of 27 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 12312323031331.

It is not an unprimeable number, because it can be changed into a prime (12312323001331) 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 31 ways as a sum of consecutive naturals, for example, 13141521 + ... + 14047213.

It is an arithmetic number, because the mean of its divisors is an integer number (420332585400).

Almost surely, 2^{12312323031331} is an apocalyptic number.

12312323031331 is a deficient number, since it is larger than the sum of its proper divisors (1138319701469).

12312323031331 is a wasteful number, since it uses less digits than its factorization.

12312323031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906019.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 12312323031331 its reverse (13313032321321), we get a palindrome (25625355352652).

The spelling of 12312323031331 in words is "twelve trillion, three hundred twelve billion, three hundred twenty-three million, thirty-one thousand, three hundred thirty-one".