40043010311 has 4 divisors (see below), whose sum is σ = 41423803800. Its totient is φ = 38662216824.

The previous prime is 40043010221. The next prime is 40043010313. The reversal of 40043010311 is 11301034004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40043010311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40043010311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043010313) 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, 690396701 + ... + 690396758.

It is an arithmetic number, because the mean of its divisors is an integer number (10355950950).

Almost surely, 2^40043010311 is an apocalyptic number.

40043010311 is a deficient number, since it is larger than the sum of its proper divisors (1380793489).

40043010311 is a wasteful number, since it uses less digits than its factorization.

40043010311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380793488.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 40043010311 its reverse (11301034004), we get a palindrome (51344044315).

The spelling of 40043010311 in words is "forty billion, forty-three million, ten thousand, three hundred eleven".