423043111213 has 2 divisors, whose sum is σ = 423043111214. Its totient is φ = 423043111212.

The previous prime is 423043111193. The next prime is 423043111223. The reversal of 423043111213 is 312111340324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347801524009 + 75241587204 = 589747^2 + 274302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423043111213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423043111223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211521555606 + 211521555607.

It is an arithmetic number, because the mean of its divisors is an integer number (211521555607).

Almost surely, 2^423043111213 is an apocalyptic number.

It is an amenable number.

423043111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

423043111213 is an equidigital number, since it uses as much as digits as its factorization.

423043111213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 423043111213 its reverse (312111340324), we get a palindrome (735154451537).

The spelling of 423043111213 in words is "four hundred twenty-three billion, forty-three million, one hundred eleven thousand, two hundred thirteen".