12012310312231 has 16 divisors (see below), whose sum is σ = 12285130156416. Its totient is φ = 11740219577856.

The previous prime is 12012310312229. The next prime is 12012310312283. The reversal of 12012310312231 is 13221301321021.

It is a cyclic number.

It is not a de Polignac number, because 12012310312231 - 2¹ = 12012310312229 is a prime.

It is a super-2 number, since 2×12012310312231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012310312291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104783215 + ... + 104897791.

It is an arithmetic number, because the mean of its divisors is an integer number (767820634776).

Almost surely, 2^{12012310312231} is an apocalyptic number.

12012310312231 is a deficient number, since it is larger than the sum of its proper divisors (272819844185).

12012310312231 is a wasteful number, since it uses less digits than its factorization.

12012310312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117738.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12012310312231 its reverse (13221301321021), we get a palindrome (25233611633252).

The spelling of 12012310312231 in words is "twelve trillion, twelve billion, three hundred ten million, three hundred twelve thousand, two hundred thirty-one".