12231333013 has 2 divisors, whose sum is σ = 12231333014. Its totient is φ = 12231333012.

The previous prime is 12231332989. The next prime is 12231333019. The reversal of 12231333013 is 31033313221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11780280369 + 451052644 = 108537^2 + 21238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12231333013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231333019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115666506 + 6115666507.

It is an arithmetic number, because the mean of its divisors is an integer number (6115666507).

Almost surely, 2^12231333013 is an apocalyptic number.

It is an amenable number.

12231333013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231333013 is an equidigital number, since it uses as much as digits as its factorization.

12231333013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12231333013 its reverse (31033313221), we get a palindrome (43264646234).

The spelling of 12231333013 in words is "twelve billion, two hundred thirty-one million, three hundred thirty-three thousand, thirteen".