331312441 has 4 divisors (see below), whose sum is σ = 331430400. Its totient is φ = 331194484.

The previous prime is 331312427. The next prime is 331312453. The reversal of 331312441 is 144213133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144213133 = 1553 ⋅92861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331312441 is a prime.

It is a super-2 number, since 2×331312441² = 219535867122756962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331312141) 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, 54661 + ... + 60418.

It is an arithmetic number, because the mean of its divisors is an integer number (82857600).

Almost surely, 2^331312441 is an apocalyptic number.

It is an amenable number.

331312441 is a deficient number, since it is larger than the sum of its proper divisors (117959).

331312441 is a wasteful number, since it uses less digits than its factorization.

331312441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117958.

The product of its digits is 864, while the sum is 22.

The square root of 331312441 is about 18201.9900285656. The cubic root of 331312441 is about 691.9572245993.

Adding to 331312441 its reverse (144213133), we get a palindrome (475525574).

The spelling of 331312441 in words is "three hundred thirty-one million, three hundred twelve thousand, four hundred forty-one".