12331231131133 has 4 divisors (see below), whose sum is σ = 12335568535008. Its totient is φ = 12326893727260.

The previous prime is 12331231131097. The next prime is 12331231131137. The reversal of 12331231131133 is 33113113213321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12331231131133 - 2²⁵ = 12331197576701 is a prime.

It is a super-2 number, since 2×12331231131133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331231131137) 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, 2168697673 + ... + 2168703358.

It is an arithmetic number, because the mean of its divisors is an integer number (3083892133752).

Almost surely, 2^{12331231131133} is an apocalyptic number.

It is an amenable number.

12331231131133 is a deficient number, since it is larger than the sum of its proper divisors (4337403875).

12331231131133 is an equidigital number, since it uses as much as digits as its factorization.

12331231131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337403874.

The product of its digits is 2916, while the sum is 28.

Adding to 12331231131133 its reverse (33113113213321), we get a palindrome (45444344344454).

The spelling of 12331231131133 in words is "twelve trillion, three hundred thirty-one billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred thirty-three".