12033123113 has 4 divisors (see below), whose sum is σ = 13127043408. Its totient is φ = 10939202820.

The previous prime is 12033123041. The next prime is 12033123173. The reversal of 12033123113 is 31132133021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31132133021 = 11 ⋅2830193911.

It is a cyclic number.

It is not a de Polignac number, because 12033123113 - 2¹⁰ = 12033122089 is a prime.

It is a super-2 number, since 2×12033123113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12033123173) 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, 546960131 + ... + 546960152.

It is an arithmetic number, because the mean of its divisors is an integer number (3281760852).

Almost surely, 2^12033123113 is an apocalyptic number.

It is an amenable number.

12033123113 is a deficient number, since it is larger than the sum of its proper divisors (1093920295).

12033123113 is a wasteful number, since it uses less digits than its factorization.

12033123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093920294.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12033123113 its reverse (31132133021), we get a palindrome (43165256134).

The spelling of 12033123113 in words is "twelve billion, thirty-three million, one hundred twenty-three thousand, one hundred thirteen".