311042404241 has 4 divisors (see below), whose sum is σ = 312621299892. Its totient is φ = 309463508592.

The previous prime is 311042404177. The next prime is 311042404273. The reversal of 311042404241 is 142404240113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142404240113 = 31541 ⋅4514893.

It can be written as a sum of positive squares in 2 ways, for example, as 307890704641 + 3151699600 = 554879^2 + 56140^2 .

It is a cyclic number.

It is not a de Polignac number, because 311042404241 - 2⁶ = 311042404177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311042404241.

It is not an unprimeable number, because it can be changed into a prime (311042404291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789447530 + ... + 789447923.

It is an arithmetic number, because the mean of its divisors is an integer number (78155324973).

Almost surely, 2^311042404241 is an apocalyptic number.

It is an amenable number.

311042404241 is a deficient number, since it is larger than the sum of its proper divisors (1578895651).

311042404241 is a wasteful number, since it uses less digits than its factorization.

311042404241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578895650.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 311042404241 its reverse (142404240113), we get a palindrome (453446644354).

The spelling of 311042404241 in words is "three hundred eleven billion, forty-two million, four hundred four thousand, two hundred forty-one".