12033111331 has 8 divisors (see below), whose sum is σ = 12678739200. Its totient is φ = 11388714120.

The previous prime is 12033111313. The next prime is 12033111367. The reversal of 12033111331 is 13311133021.

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 12033111331 - 2⁷ = 12033111203 is a prime.

It is a super-2 number, since 2×12033111331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12033111299 and 12033111308.

It is not an unprimeable number, because it can be changed into a prime (12033111031) 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, 287551 + ... + 326728.

It is an arithmetic number, because the mean of its divisors is an integer number (1584842400).

Almost surely, 2^12033111331 is an apocalyptic number.

12033111331 is a deficient number, since it is larger than the sum of its proper divisors (645627869).

12033111331 is a wasteful number, since it uses less digits than its factorization.

12033111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615329.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 12033111331 its reverse (13311133021), we get a palindrome (25344244352).

The spelling of 12033111331 in words is "twelve billion, thirty-three million, one hundred eleven thousand, three hundred thirty-one".