40343343143 has 4 divisors (see below), whose sum is σ = 41027128680. Its totient is φ = 39659557608.

The previous prime is 40343343137. The next prime is 40343343167. The reversal of 40343343143 is 34134334304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40343343143 - 2¹⁶ = 40343277607 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 (40343343193) 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, 341892680 + ... + 341892797.

It is an arithmetic number, because the mean of its divisors is an integer number (10256782170).

Almost surely, 2^40343343143 is an apocalyptic number.

40343343143 is a deficient number, since it is larger than the sum of its proper divisors (683785537).

40343343143 is an equidigital number, since it uses as much as digits as its factorization.

40343343143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683785536.

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 40343343143 its reverse (34134334304), we get a palindrome (74477677447).

The spelling of 40343343143 in words is "forty billion, three hundred forty-three million, three hundred forty-three thousand, one hundred forty-three".