40043145011 has 4 divisors (see below), whose sum is σ = 40048221024. Its totient is φ = 40038069000.

The previous prime is 40043144983. The next prime is 40043145019. The reversal of 40043145011 is 11054134004.

40043145011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40043145011 - 2²⁶ = 39976036147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40043145019) 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, 2526155 + ... + 2541956.

It is an arithmetic number, because the mean of its divisors is an integer number (10012055256).

Almost surely, 2^40043145011 is an apocalyptic number.

40043145011 is a deficient number, since it is larger than the sum of its proper divisors (5076013).

40043145011 is an equidigital number, since it uses as much as digits as its factorization.

40043145011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076012.

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

Adding to 40043145011 its reverse (11054134004), we get a palindrome (51097279015).

The spelling of 40043145011 in words is "forty billion, forty-three million, one hundred forty-five thousand, eleven".