40143013343 has 4 divisors (see below), whose sum is σ = 40518181800. Its totient is φ = 39767844888.

The previous prime is 40143013333. The next prime is 40143013357. The reversal of 40143013343 is 34331034104.

It is a happy number.

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 40143013343 - 2¹⁸ = 40142751199 is a prime.

It is a super-2 number, since 2×40143013343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143013333) 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, 187584068 + ... + 187584281.

It is an arithmetic number, because the mean of its divisors is an integer number (10129545450).

Almost surely, 2^40143013343 is an apocalyptic number.

40143013343 is a deficient number, since it is larger than the sum of its proper divisors (375168457).

40143013343 is a wasteful number, since it uses less digits than its factorization.

40143013343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375168456.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 40143013343 its reverse (34331034104), we get a palindrome (74474047447).

The spelling of 40143013343 in words is "forty billion, one hundred forty-three million, thirteen thousand, three hundred forty-three".