40020343311 has 16 divisors (see below), whose sum is σ = 57470182784. Its totient is φ = 24625728864.

The previous prime is 40020343291. The next prime is 40020343333. The reversal of 40020343311 is 11334302004.

It is not a de Polignac number, because 40020343311 - 2⁹ = 40020342799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40020344311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478740 + ... + 556086.

It is an arithmetic number, because the mean of its divisors is an integer number (3591886424).

Almost surely, 2^40020343311 is an apocalyptic number.

40020343311 is a deficient number, since it is larger than the sum of its proper divisors (17449839473).

40020343311 is a wasteful number, since it uses less digits than its factorization.

40020343311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90630.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 40020343311 its reverse (11334302004), we get a palindrome (51354645315).

The spelling of 40020343311 in words is "forty billion, twenty million, three hundred forty-three thousand, three hundred eleven".