12031103213231 has 2 divisors, whose sum is σ = 12031103213232. Its totient is φ = 12031103213230.

The previous prime is 12031103213179. The next prime is 12031103213249. The reversal of 12031103213231 is 13231230113021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12031103213231 - 2³⁰ = 12030029471407 is a prime.

It is a super-2 number, since 2×12031103213231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031103213197 and 12031103213206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031103213531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015551606615 + 6015551606616.

It is an arithmetic number, because the mean of its divisors is an integer number (6015551606616).

Almost surely, 2^{12031103213231} is an apocalyptic number.

12031103213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031103213231 is an equidigital number, since it uses as much as digits as its factorization.

12031103213231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12031103213231 its reverse (13231230113021), we get a palindrome (25262333326252).

The spelling of 12031103213231 in words is "twelve trillion, thirty-one billion, one hundred three million, two hundred thirteen thousand, two hundred thirty-one".