12031202123231 has 8 divisors (see below), whose sum is σ = 12035763600000. Its totient is φ = 12026641518360.

The previous prime is 12031202123221. The next prime is 12031202123243. The reversal of 12031202123231 is 13232120213021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031202123231 is a prime.

It is a super-2 number, since 2×12031202123231² (a number of 27 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 = 12031202123197 and 12031202123206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031202123221) 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, 28076696 + ... + 28501986.

It is an arithmetic number, because the mean of its divisors is an integer number (1504470450000).

Almost surely, 2^{12031202123231} is an apocalyptic number.

12031202123231 is a deficient number, since it is larger than the sum of its proper divisors (4561476769).

12031202123231 is an equidigital number, since it uses as much as digits as its factorization.

12031202123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435949.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12031202123231 its reverse (13232120213021), we get a palindrome (25263322336252).

The spelling of 12031202123231 in words is "twelve trillion, thirty-one billion, two hundred two million, one hundred twenty-three thousand, two hundred thirty-one".