12813422443 has 2 divisors, whose sum is σ = 12813422444. Its totient is φ = 12813422442.

The previous prime is 12813422431. The next prime is 12813422477. The reversal of 12813422443 is 34422431821.

It is an a-pointer prime, because the next prime (12813422477) can be obtained adding 12813422443 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12813422443 - 2⁹ = 12813421931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12813422399 and 12813422408.

It is not a weakly prime, because it can be changed into another prime (12813428443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406711221 + 6406711222.

It is an arithmetic number, because the mean of its divisors is an integer number (6406711222).

Almost surely, 2^12813422443 is an apocalyptic number.

12813422443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12813422443 is an equidigital number, since it uses as much as digits as its factorization.

12813422443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 34.

The spelling of 12813422443 in words is "twelve billion, eight hundred thirteen million, four hundred twenty-two thousand, four hundred forty-three".