12031211022331 has 8 divisors (see below), whose sum is σ = 12159039395664. Its totient is φ = 11903460103680.

The previous prime is 12031211022329. The next prime is 12031211022403. The reversal of 12031211022331 is 13322011213021.

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

It is a cyclic number.

It is not a de Polignac number, because 12031211022331 - 2¹ = 12031211022329 is a prime.

It is a super-2 number, since 2×12031211022331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031211062331) 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, 19051330 + ... + 19672711.

It is an arithmetic number, because the mean of its divisors is an integer number (1519879924458).

Almost surely, 2^{12031211022331} is an apocalyptic number.

12031211022331 is a deficient number, since it is larger than the sum of its proper divisors (127828373333).

12031211022331 is an equidigital number, since it uses as much as digits as its factorization.

12031211022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38727341.

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

Adding to 12031211022331 its reverse (13322011213021), we get a palindrome (25353222235352).

The spelling of 12031211022331 in words is "twelve trillion, thirty-one billion, two hundred eleven million, twenty-two thousand, three hundred thirty-one".