12012301331 has 4 divisors (see below), whose sum is σ = 12014056464. Its totient is φ = 12010546200.

The previous prime is 12012301297. The next prime is 12012301349. The reversal of 12012301331 is 13310321021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12012301331 - 2¹⁸ = 12012039187 is a prime.

It is a super-2 number, since 2×12012301331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012301361) 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 3 ways as a sum of consecutive naturals, for example, 867260 + ... + 881001.

It is an arithmetic number, because the mean of its divisors is an integer number (3003514116).

Almost surely, 2^12012301331 is an apocalyptic number.

12012301331 is a deficient number, since it is larger than the sum of its proper divisors (1755133).

12012301331 is an equidigital number, since it uses as much as digits as its factorization.

12012301331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755132.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12012301331 its reverse (13310321021), we get a palindrome (25322622352).

The spelling of 12012301331 in words is "twelve billion, twelve million, three hundred one thousand, three hundred thirty-one".