311441121 has 12 divisors (see below), whose sum is σ = 465372180. Its totient is φ = 200467680.

The previous prime is 311441111. The next prime is 311441153. The reversal of 311441121 is 121144113.

It can be written as a sum of positive squares in 2 ways, for example, as 223831521 + 87609600 = 14961^2 + 9360^2 .

It is not a de Polignac number, because 311441121 - 2¹⁰ = 311440097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311441094 and 311441103.

It is not an unprimeable number, because it can be changed into a prime (311441111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596370 + ... + 596891.

It is an arithmetic number, because the mean of its divisors is an integer number (38781015).

Almost surely, 2^311441121 is an apocalyptic number.

It is an amenable number.

311441121 is a deficient number, since it is larger than the sum of its proper divisors (153931059).

311441121 is a wasteful number, since it uses less digits than its factorization.

311441121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193296 (or 1193293 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 311441121 is about 17647.6944953158. The cubic root of 311441121 is about 677.8370728669.

Adding to 311441121 its reverse (121144113), we get a palindrome (432585234).

It can be divided in two parts, 31144112 and 1, that added together give a palindrome (31144113).

The spelling of 311441121 in words is "three hundred eleven million, four hundred forty-one thousand, one hundred twenty-one".