40505342011 has 8 divisors (see below), whose sum is σ = 41639908464. Its totient is φ = 39377758080.

The previous prime is 40505341993. The next prime is 40505342023. The reversal of 40505342011 is 11024350504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40505342011 - 2⁵ = 40505341979 is a prime.

It is a super-3 number, since 3×40505342011³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40505349011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733866 + ... + 1757071.

It is an arithmetic number, because the mean of its divisors is an integer number (5204988558).

Almost surely, 2^40505342011 is an apocalyptic number.

40505342011 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40505342011 is a deficient number, since it is larger than the sum of its proper divisors (1134566453).

40505342011 is a wasteful number, since it uses less digits than its factorization.

40505342011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491261.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 40505342011 its reverse (11024350504), we get a palindrome (51529692515).

The spelling of 40505342011 in words is "forty billion, five hundred five million, three hundred forty-two thousand, eleven".