12231330553 has 6 divisors (see below), whose sum is σ = 13244577054. Its totient is φ = 11290458816.

The previous prime is 12231330523. The next prime is 12231330577. The reversal of 12231330553 is 35503313221.

It can be written as a sum of positive squares in 3 ways, for example, as 1384732944 + 10846597609 = 37212^2 + 104147^2 .

It is not a de Polignac number, because 12231330553 - 2¹³ = 12231322361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231330523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36187200 + ... + 36187537.

It is an arithmetic number, because the mean of its divisors is an integer number (2207429509).

Almost surely, 2^12231330553 is an apocalyptic number.

12231330553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12231330553 is a deficient number, since it is larger than the sum of its proper divisors (1013246501).

12231330553 is an equidigital number, since it uses as much as digits as its factorization.

12231330553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72374763 (or 72374750 counting only the distinct ones).

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

Adding to 12231330553 its reverse (35503313221), we get a palindrome (47734643774).

The spelling of 12231330553 in words is "twelve billion, two hundred thirty-one million, three hundred thirty thousand, five hundred fifty-three".