311440042042311 has 32 divisors (see below), whose sum is σ = 511593714032128. Its totient is φ = 164111295611520.

The previous prime is 311440042042303. The next prime is 311440042042417. The reversal of 311440042042311 is 113240240044113.

It is a happy number.

It is not a de Polignac number, because 311440042042311 - 2³ = 311440042042303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311440042032311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571847185 + ... + 572391546.

It is an arithmetic number, because the mean of its divisors is an integer number (15987303563504).

Almost surely, 2^{311440042042311} is an apocalyptic number.

311440042042311 is a deficient number, since it is larger than the sum of its proper divisors (200153671989817).

311440042042311 is a wasteful number, since it uses less digits than its factorization.

311440042042311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144239751.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 311440042042311 its reverse (113240240044113), we get a palindrome (424680282086424).

The spelling of 311440042042311 in words is "three hundred eleven trillion, four hundred forty billion, forty-two million, forty-two thousand, three hundred eleven".