12003231210331 has 4 divisors (see below), whose sum is σ = 12027878502832. Its totient is φ = 11978583917832.

The previous prime is 12003231210307. The next prime is 12003231210379. The reversal of 12003231210331 is 13301213230021.

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 12003231210331 - 2¹³ = 12003231202139 is a prime.

It is a super-2 number, since 2×12003231210331² (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 (12003231210391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12323645520 + ... + 12323646493.

It is an arithmetic number, because the mean of its divisors is an integer number (3006969625708).

Almost surely, 2^{12003231210331} is an apocalyptic number.

12003231210331 is a deficient number, since it is larger than the sum of its proper divisors (24647292501).

12003231210331 is an equidigital number, since it uses as much as digits as its factorization.

12003231210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24647292500.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12003231210331 its reverse (13301213230021), we get a palindrome (25304444440352).

The spelling of 12003231210331 in words is "twelve trillion, three billion, two hundred thirty-one million, two hundred ten thousand, three hundred thirty-one".