12132303331 has 4 divisors (see below), whose sum is σ = 12134826792. Its totient is φ = 12129779872.

The previous prime is 12132303329. The next prime is 12132303343. The reversal of 12132303331 is 13330323121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330323121 = 51473 ⋅258977.

It is a cyclic number.

It is not a de Polignac number, because 12132303331 - 2¹ = 12132303329 is a prime.

It is a super-2 number, since 2×12132303331² (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 (12132303031) 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, 1254505 + ... + 1264138.

It is an arithmetic number, because the mean of its divisors is an integer number (3033706698).

Almost surely, 2^12132303331 is an apocalyptic number.

12132303331 is a deficient number, since it is larger than the sum of its proper divisors (2523461).

12132303331 is an equidigital number, since it uses as much as digits as its factorization.

12132303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523460.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12132303331 its reverse (13330323121), we get a palindrome (25462626452).

The spelling of 12132303331 in words is "twelve billion, one hundred thirty-two million, three hundred three thousand, three hundred thirty-one".