40434323011 has 4 divisors (see below), whose sum is σ = 40607861112. Its totient is φ = 40260784912.

The previous prime is 40434323009. The next prime is 40434323021. The reversal of 40434323011 is 11032343404.

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 40434323011 - 2¹ = 40434323009 is a prime.

It is a super-2 number, since 2×40434323011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40434323021) 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, 86768701 + ... + 86769166.

It is an arithmetic number, because the mean of its divisors is an integer number (10151965278).

Almost surely, 2^40434323011 is an apocalyptic number.

40434323011 is a deficient number, since it is larger than the sum of its proper divisors (173538101).

40434323011 is a wasteful number, since it uses less digits than its factorization.

40434323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173538100.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40434323011 its reverse (11032343404), we get a palindrome (51466666415).

The spelling of 40434323011 in words is "forty billion, four hundred thirty-four million, three hundred twenty-three thousand, eleven".