311242135211 has 8 divisors (see below), whose sum is σ = 358301687520. Its totient is φ = 264831680448.

The previous prime is 311242135159. The next prime is 311242135223. The reversal of 311242135211 is 112531242113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311242135211 - 2³⁴ = 294062266027 is a prime.

It is a super-3 number, since 3×311242135211³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (311242135111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162273356 + ... + 162275273.

It is an arithmetic number, because the mean of its divisors is an integer number (44787710940).

Almost surely, 2^311242135211 is an apocalyptic number.

311242135211 is a deficient number, since it is larger than the sum of its proper divisors (47059552309).

311242135211 is a wasteful number, since it uses less digits than its factorization.

311242135211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324548773.

The product of its digits is 1440, while the sum is 26.

Adding to 311242135211 its reverse (112531242113), we get a palindrome (423773377324).

The spelling of 311242135211 in words is "three hundred eleven billion, two hundred forty-two million, one hundred thirty-five thousand, two hundred eleven".