311444121 has 8 divisors (see below), whose sum is σ = 418046400. Its totient is φ = 206235632.

The previous prime is 311444113. The next prime is 311444171. The reversal of 311444121 is 121444113.

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 311444121 - 2³ = 311444113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311444171) 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, 347925 + ... + 348818.

It is an arithmetic number, because the mean of its divisors is an integer number (52255800).

Almost surely, 2^311444121 is an apocalyptic number.

It is an amenable number.

311444121 is a deficient number, since it is larger than the sum of its proper divisors (106602279).

311444121 is a wasteful number, since it uses less digits than its factorization.

311444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696895.

The product of its digits is 384, while the sum is 21.

The square root of 311444121 is about 17647.7794920494. The cubic root of 311444121 is about 677.8392493133.

Adding to 311444121 its reverse (121444113), we get a palindrome (432888234).

The spelling of 311444121 in words is "three hundred eleven million, four hundred forty-four thousand, one hundred twenty-one".