40343213323 has 16 divisors (see below), whose sum is σ = 50206752000. Its totient is φ = 31630247712.

The previous prime is 40343213321. The next prime is 40343213341. The reversal of 40343213323 is 32331234304.

It is a happy number.

It is not a de Polignac number, because 40343213323 - 2¹ = 40343213321 is a prime.

It is a super-2 number, since 2×40343213323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40343213291 and 40343213300.

It is not an unprimeable number, because it can be changed into a prime (40343213321) 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, 5226013 + ... + 5233726.

It is an arithmetic number, because the mean of its divisors is an integer number (3137922000).

Almost surely, 2^40343213323 is an apocalyptic number.

40343213323 is a deficient number, since it is larger than the sum of its proper divisors (9863538677).

40343213323 is a wasteful number, since it uses less digits than its factorization.

40343213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459794.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 40343213323 its reverse (32331234304), we get a palindrome (72674447627).

The spelling of 40343213323 in words is "forty billion, three hundred forty-three million, two hundred thirteen thousand, three hundred twenty-three".