12331121303 has 4 divisors (see below), whose sum is σ = 12351916368. Its totient is φ = 12310326240.

The previous prime is 12331121293. The next prime is 12331121311. The reversal of 12331121303 is 30312113321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30312113321 = 7 ⋅4330301903.

It is a cyclic number.

It is not a de Polignac number, because 12331121303 - 2²² = 12326926999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331121393) 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, 10396643 + ... + 10397828.

It is an arithmetic number, because the mean of its divisors is an integer number (3087979092).

Almost surely, 2^12331121303 is an apocalyptic number.

12331121303 is a deficient number, since it is larger than the sum of its proper divisors (20795065).

12331121303 is an equidigital number, since it uses as much as digits as its factorization.

12331121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20795064.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12331121303 its reverse (30312113321), we get a palindrome (42643234624).

The spelling of 12331121303 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, three hundred three".