40531343211 has 24 divisors (see below), whose sum is σ = 60014663280. Its totient is φ = 26344979136.

The previous prime is 40531343201. The next prime is 40531343231. The reversal of 40531343211 is 11234313504.

It is a happy number.

40531343211 is a `hidden beast` number, since 405 + 3 + 1 + 3 + 43 + 211 = 666.

It is not a de Polignac number, because 40531343211 - 2³³ = 31941408619 is a prime.

It is a super-3 number, since 3×40531343211³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40531343201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121545 + ... + 309573.

It is an arithmetic number, because the mean of its divisors is an integer number (2500610970).

Almost surely, 2^40531343211 is an apocalyptic number.

40531343211 is a deficient number, since it is larger than the sum of its proper divisors (19483320069).

40531343211 is a wasteful number, since it uses less digits than its factorization.

40531343211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188635 (or 188632 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40531343211 its reverse (11234313504), we get a palindrome (51765656715).

The spelling of 40531343211 in words is "forty billion, five hundred thirty-one million, three hundred forty-three thousand, two hundred eleven".