331024013 has 2 divisors, whose sum is σ = 331024014. Its totient is φ = 331024012.

The previous prime is 331023977. The next prime is 331024033. The reversal of 331024013 is 310420133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312688489 + 18335524 = 17683^2 + 4282^2 .

It is an emirp because it is prime and its reverse (310420133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331024013 - 2¹² = 331019917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331023982 and 331024000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331024033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165512006 + 165512007.

It is an arithmetic number, because the mean of its divisors is an integer number (165512007).

Almost surely, 2^331024013 is an apocalyptic number.

It is an amenable number.

331024013 is a deficient number, since it is larger than the sum of its proper divisors (1).

331024013 is an equidigital number, since it uses as much as digits as its factorization.

331024013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 331024013 is about 18194.0653236158. The cubic root of 331024013 is about 691.7563690953.

Adding to 331024013 its reverse (310420133), we get a palindrome (641444146).

The spelling of 331024013 in words is "three hundred thirty-one million, twenty-four thousand, thirteen".