40043331111 has 48 divisors (see below), whose sum is σ = 63926384640. Its totient is φ = 22221501120.

The previous prime is 40043331091. The next prime is 40043331149. The reversal of 40043331111 is 11113334004.

40043331111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40043331111 - 2⁶ = 40043331047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043351111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680130 + ... + 736656.

It is an arithmetic number, because the mean of its divisors is an integer number (1331799680).

Almost surely, 2^40043331111 is an apocalyptic number.

40043331111 is a deficient number, since it is larger than the sum of its proper divisors (23883053529).

40043331111 is a wasteful number, since it uses less digits than its factorization.

40043331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56684 (or 56677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 40043331111 its reverse (11113334004), we get a palindrome (51156665115).

The spelling of 40043331111 in words is "forty billion, forty-three million, three hundred thirty-one thousand, one hundred eleven".