12163420343 has 4 divisors (see below), whose sum is σ = 12172799760. Its totient is φ = 12154040928.

The previous prime is 12163420333. The next prime is 12163420391. The reversal of 12163420343 is 34302436121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34302436121 = 691 ⋅49641731.

It is a cyclic number.

It is not a de Polignac number, because 12163420343 - 2¹⁶ = 12163354807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163420333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4687763 + ... + 4690356.

It is an arithmetic number, because the mean of its divisors is an integer number (3043199940).

Almost surely, 2^12163420343 is an apocalyptic number.

12163420343 is a deficient number, since it is larger than the sum of its proper divisors (9379417).

12163420343 is an equidigital number, since it uses as much as digits as its factorization.

12163420343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379416.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12163420343 its reverse (34302436121), we get a palindrome (46465856464).

The spelling of 12163420343 in words is "twelve billion, one hundred sixty-three million, four hundred twenty thousand, three hundred forty-three".