12131013333 has 4 divisors (see below), whose sum is σ = 16174684448. Its totient is φ = 8087342220.

The previous prime is 12131013329. The next prime is 12131013337. The reversal of 12131013333 is 33331013121.

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 an interprime number because it is at equal distance from previous prime (12131013329) and next prime (12131013337).

It is not a de Polignac number, because 12131013333 - 2² = 12131013329 is a prime.

It is a super-2 number, since 2×12131013333² (a number of 21 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 (12131013337) 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, 2021835553 + ... + 2021835558.

It is an arithmetic number, because the mean of its divisors is an integer number (4043671112).

Almost surely, 2^12131013333 is an apocalyptic number.

It is an amenable number.

12131013333 is a deficient number, since it is larger than the sum of its proper divisors (4043671115).

12131013333 is an equidigital number, since it uses as much as digits as its factorization.

12131013333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043671114.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 12131013333 its reverse (33331013121), we get a palindrome (45462026454).

The spelling of 12131013333 in words is "twelve billion, one hundred thirty-one million, thirteen thousand, three hundred thirty-three".