311232404311 has 4 divisors (see below), whose sum is σ = 319644090952. Its totient is φ = 302820717672.

The previous prime is 311232404309. The next prime is 311232404363. The reversal of 311232404311 is 113404232113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113404232113 = 8971 ⋅12641203.

It is a cyclic number.

It is not a de Polignac number, because 311232404311 - 2¹ = 311232404309 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 (311232404011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4205843265 + ... + 4205843338.

It is an arithmetic number, because the mean of its divisors is an integer number (79911022738).

Almost surely, 2^311232404311 is an apocalyptic number.

311232404311 is a deficient number, since it is larger than the sum of its proper divisors (8411686641).

311232404311 is an equidigital number, since it uses as much as digits as its factorization.

311232404311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411686640.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311232404311 its reverse (113404232113), we get a palindrome (424636636424).

The spelling of 311232404311 in words is "three hundred eleven billion, two hundred thirty-two million, four hundred four thousand, three hundred eleven".