40313402320243 has 16 divisors (see below), whose sum is σ = 43823132248000. Its totient is φ = 36863691131520.

The previous prime is 40313402320199. The next prime is 40313402320271. The reversal of 40313402320243 is 34202320431304.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40313402320243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40313402327243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33431748 + ... + 34616593.

It is an arithmetic number, because the mean of its divisors is an integer number (2738945765500).

Almost surely, 2^{40313402320243} is an apocalyptic number.

40313402320243 is a deficient number, since it is larger than the sum of its proper divisors (3509729927757).

40313402320243 is a wasteful number, since it uses less digits than its factorization.

40313402320243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68048782.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 40313402320243 its reverse (34202320431304), we get a palindrome (74515722751547).

The spelling of 40313402320243 in words is "forty trillion, three hundred thirteen billion, four hundred two million, three hundred twenty thousand, two hundred forty-three".