43320400311 has 16 divisors (see below), whose sum is σ = 60811068800. Its totient is φ = 27355524768.

The previous prime is 43320400309. The next prime is 43320400351. The reversal of 43320400311 is 11300402334.

43320400311 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 43320400311 - 2¹ = 43320400309 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 (43320400351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283185 + ... + 408453.

It is an arithmetic number, because the mean of its divisors is an integer number (3800691800).

Almost surely, 2^43320400311 is an apocalyptic number.

43320400311 is a deficient number, since it is larger than the sum of its proper divisors (17490668489).

43320400311 is a wasteful number, since it uses less digits than its factorization.

43320400311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131358.

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

Adding to 43320400311 its reverse (11300402334), we get a palindrome (54620802645).

The spelling of 43320400311 in words is "forty-three billion, three hundred twenty million, four hundred thousand, three hundred eleven".