12230315533 has 12 divisors (see below), whose sum is σ = 12401308980. Its totient is φ = 12061500800.

The previous prime is 12230315521. The next prime is 12230315557. The reversal of 12230315533 is 33551303221.

It can be written as a sum of positive squares in 6 ways, for example, as 2099289124 + 10131026409 = 45818^2 + 100653^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12230315533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230315633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2741841 + ... + 2746297.

It is an arithmetic number, because the mean of its divisors is an integer number (1033442415).

Almost surely, 2^12230315533 is an apocalyptic number.

It is an amenable number.

12230315533 is a deficient number, since it is larger than the sum of its proper divisors (170993447).

12230315533 is an equidigital number, since it uses as much as digits as its factorization.

12230315533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 12230315533 its reverse (33551303221), we get a palindrome (45781618754).

The spelling of 12230315533 in words is "twelve billion, two hundred thirty million, three hundred fifteen thousand, five hundred thirty-three".