40043512211 has 4 divisors (see below), whose sum is σ = 40136421024. Its totient is φ = 39950603400.

The previous prime is 40043512163. The next prime is 40043512217. The reversal of 40043512211 is 11221534004.

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 40043512211 - 2¹⁰ = 40043511187 is a prime.

It is a super-2 number, since 2×40043512211² (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 (40043512217) 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, 46453760 + ... + 46454621.

It is an arithmetic number, because the mean of its divisors is an integer number (10034105256).

Almost surely, 2^40043512211 is an apocalyptic number.

40043512211 is a deficient number, since it is larger than the sum of its proper divisors (92908813).

40043512211 is an equidigital number, since it uses as much as digits as its factorization.

40043512211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92908812.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 40043512211 in words is "forty billion, forty-three million, five hundred twelve thousand, two hundred eleven".