12403126313 has 2 divisors, whose sum is σ = 12403126314. Its totient is φ = 12403126312.

The previous prime is 12403126189. The next prime is 12403126343. The reversal of 12403126313 is 31362130421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12376117504 + 27008809 = 111248^2 + 5197^2 .

It is an emirp because it is prime and its reverse (31362130421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12403126313 - 2¹² = 12403122217 is a prime.

It is a super-3 number, since 3×12403126313³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12403126343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201563156 + 6201563157.

It is an arithmetic number, because the mean of its divisors is an integer number (6201563157).

Almost surely, 2^12403126313 is an apocalyptic number.

It is an amenable number.

12403126313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403126313 is an equidigital number, since it uses as much as digits as its factorization.

12403126313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12403126313 its reverse (31362130421), we get a palindrome (43765256734).

The spelling of 12403126313 in words is "twelve billion, four hundred three million, one hundred twenty-six thousand, three hundred thirteen".