13233001231 has 4 divisors (see below), whose sum is σ = 13929475000. Its totient is φ = 12536527464.

The previous prime is 13233001219. The next prime is 13233001237. The reversal of 13233001231 is 13210033231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13233001231 - 2²⁹ = 12696130319 is a prime.

It is a super-2 number, since 2×13233001231² (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), and also a Moran number because the ratio is a prime number: 696473749 = 13233001231 / (1 + 3 + 2 + 3 + 3 + 0 + 0 + 1 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13233001199 and 13233001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233001237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348236856 + ... + 348236893.

It is an arithmetic number, because the mean of its divisors is an integer number (3482368750).

Almost surely, 2^13233001231 is an apocalyptic number.

13233001231 is a deficient number, since it is larger than the sum of its proper divisors (696473769).

13233001231 is an equidigital number, since it uses as much as digits as its factorization.

13233001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696473768.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13233001231 its reverse (13210033231), we get a palindrome (26443034462).

The spelling of 13233001231 in words is "thirteen billion, two hundred thirty-three million, one thousand, two hundred thirty-one".