12401040343 has 4 divisors (see below), whose sum is σ = 12422835360. Its totient is φ = 12379245328.

The previous prime is 12401040319. The next prime is 12401040401. The reversal of 12401040343 is 34304010421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34304010421 = 41 ⋅836683181.

It is a cyclic number.

It is not a de Polignac number, because 12401040343 - 2²¹ = 12398943191 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 (12401047343) 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, 10896655 + ... + 10897792.

It is an arithmetic number, because the mean of its divisors is an integer number (3105708840).

Almost surely, 2^12401040343 is an apocalyptic number.

12401040343 is a deficient number, since it is larger than the sum of its proper divisors (21795017).

12401040343 is an equidigital number, since it uses as much as digits as its factorization.

12401040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21795016.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12401040343 its reverse (34304010421), we get a palindrome (46705050764).

The spelling of 12401040343 in words is "twelve billion, four hundred one million, forty thousand, three hundred forty-three".