311401441 has 8 divisors (see below), whose sum is σ = 335508264. Its totient is φ = 287316480.

The previous prime is 311401373. The next prime is 311401451. The reversal of 311401441 is 144104113.

It can be written as a sum of positive squares in 4 ways, for example, as 31809600 + 279591841 = 5640^2 + 16721^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311401441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311401451) 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, 35595 + ... + 43471.

It is an arithmetic number, because the mean of its divisors is an integer number (41938533).

Almost surely, 2^311401441 is an apocalyptic number.

It is an amenable number.

311401441 is a deficient number, since it is larger than the sum of its proper divisors (24106823).

311401441 is a wasteful number, since it uses less digits than its factorization.

311401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10931.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 311401441 is about 17646.5702333343. The cubic root of 311401441 is about 677.8082844212.

Adding to 311401441 its reverse (144104113), we get a palindrome (455505554).

The spelling of 311401441 in words is "three hundred eleven million, four hundred one thousand, four hundred forty-one".