12001131233 has 16 divisors (see below), whose sum is σ = 14834042496. Its totient is φ = 9454631040.

The previous prime is 12001131227. The next prime is 12001131239. The reversal of 12001131233 is 33213110021.

It is an interprime number because it is at equal distance from previous prime (12001131227) and next prime (12001131239).

It is a cyclic number.

It is not a de Polignac number, because 12001131233 - 2⁶ = 12001131169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001131239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261803 + ... + 304208.

It is an arithmetic number, because the mean of its divisors is an integer number (927127656).

Almost surely, 2^12001131233 is an apocalyptic number.

12001131233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12001131233 is a deficient number, since it is larger than the sum of its proper divisors (2832911263).

12001131233 is a wasteful number, since it uses less digits than its factorization.

12001131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566264.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12001131233 its reverse (33213110021), we get a palindrome (45214241254).

The spelling of 12001131233 in words is "twelve billion, one million, one hundred thirty-one thousand, two hundred thirty-three".