12311131133 has 8 divisors (see below), whose sum is σ = 14681597568. Its totient is φ = 10093598064.

The previous prime is 12311131099. The next prime is 12311131169. The reversal of 12311131133 is 33113111321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311131133 - 2²⁰ = 12310082557 is a prime.

It is a super-3 number, since 3×12311131133³ (a number of 31 digits) contains 333 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 (12311131193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38233166 + ... + 38233487.

It is an arithmetic number, because the mean of its divisors is an integer number (1835199696).

Almost surely, 2^12311131133 is an apocalyptic number.

It is an amenable number.

12311131133 is a deficient number, since it is larger than the sum of its proper divisors (2370466435).

12311131133 is an equidigital number, since it uses as much as digits as its factorization.

12311131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76466683.

The product of its digits is 162, while the sum is 20.

Adding to 12311131133 its reverse (33113111321), we get a palindrome (45424242454).

The spelling of 12311131133 in words is "twelve billion, three hundred eleven million, one hundred thirty-one thousand, one hundred thirty-three".