40243131111 has 8 divisors (see below), whose sum is σ = 53978811264. Its totient is φ = 26668102520.

The previous prime is 40243131109. The next prime is 40243131139. The reversal of 40243131111 is 11113134204.

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 40243131111 - 2¹ = 40243131109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243131101) 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, 40162305 + ... + 40163306.

It is an arithmetic number, because the mean of its divisors is an integer number (6747351408).

Almost surely, 2^40243131111 is an apocalyptic number.

40243131111 is a deficient number, since it is larger than the sum of its proper divisors (13735680153).

40243131111 is a wasteful number, since it uses less digits than its factorization.

40243131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80325781.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 40243131111 its reverse (11113134204), we get a palindrome (51356265315).

The spelling of 40243131111 in words is "forty billion, two hundred forty-three million, one hundred thirty-one thousand, one hundred eleven".