12231304553 has 4 divisors (see below), whose sum is σ = 13172174148. Its totient is φ = 11290434960.

The previous prime is 12231304513. The next prime is 12231304559. The reversal of 12231304553 is 35540313221.

It is a happy number.

12231304553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35540313221 = 7 ⋅5077187603.

It can be written as a sum of positive squares in 2 ways, for example, as 474673369 + 11756631184 = 21787^2 + 108428^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231304553 - 2¹⁰ = 12231303529 is a prime.

It is a super-2 number, since 2×12231304553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231304559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470434778 + ... + 470434803.

It is an arithmetic number, because the mean of its divisors is an integer number (3293043537).

Almost surely, 2^12231304553 is an apocalyptic number.

12231304553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12231304553 is a deficient number, since it is larger than the sum of its proper divisors (940869595).

12231304553 is an equidigital number, since it uses as much as digits as its factorization.

12231304553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940869594.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 12231304553 its reverse (35540313221), we get a palindrome (47771617774).

The spelling of 12231304553 in words is "twelve billion, two hundred thirty-one million, three hundred four thousand, five hundred fifty-three".