331320024113 has 4 divisors (see below), whose sum is σ = 356806179828. Its totient is φ = 305833868400.

The previous prime is 331320024109. The next prime is 331320024121. The reversal of 331320024113 is 311420023133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311420023133 = 47 ⋅6625957939.

It can be written as a sum of positive squares in 2 ways, for example, as 205275143329 + 126044880784 = 453073^2 + 355028^2 .

It is a cyclic number.

It is not a de Polignac number, because 331320024113 - 2² = 331320024109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331320024173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12743077838 + ... + 12743077863.

It is an arithmetic number, because the mean of its divisors is an integer number (89201544957).

Almost surely, 2^331320024113 is an apocalyptic number.

It is an amenable number.

331320024113 is a deficient number, since it is larger than the sum of its proper divisors (25486155715).

331320024113 is a wasteful number, since it uses less digits than its factorization.

331320024113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25486155714.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 331320024113 its reverse (311420023133), we get a palindrome (642740047246).

The spelling of 331320024113 in words is "three hundred thirty-one billion, three hundred twenty million, twenty-four thousand, one hundred thirteen".