12123333331 has 8 divisors (see below), whose sum is σ = 12278080080. Its totient is φ = 11968793472.

The previous prime is 12123333329. The next prime is 12123333349. The reversal of 12123333331 is 13333332121.

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 12123333331 - 2¹ = 12123333329 is a prime.

It is a super-2 number, since 2×12123333331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123333296 and 12123333305.

It is not an unprimeable number, because it can be changed into a prime (12123333731) 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, 67975 + ... + 169903.

It is an arithmetic number, because the mean of its divisors is an integer number (1534760010).

Almost surely, 2^12123333331 is an apocalyptic number.

12123333331 is a deficient number, since it is larger than the sum of its proper divisors (154746749).

12123333331 is a wasteful number, since it uses less digits than its factorization.

12123333331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103445.

The product of its digits is 2916, while the sum is 25.

Adding to 12123333331 its reverse (13333332121), we get a palindrome (25456665452).

The spelling of 12123333331 in words is "twelve billion, one hundred twenty-three million, three hundred thirty-three thousand, three hundred thirty-one".