331233013 has 2 divisors, whose sum is σ = 331233014. Its totient is φ = 331233012.

The previous prime is 331233011. The next prime is 331233031. The reversal of 331233013 is 310332133.

Together with next prime (331233031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330621489 + 611524 = 18183^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 331233013 - 2¹ = 331233011 is a prime.

Together with 331233011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331233011) 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 as a sum of consecutive naturals, namely, 165616506 + 165616507.

It is an arithmetic number, because the mean of its divisors is an integer number (165616507).

Almost surely, 2^331233013 is an apocalyptic number.

It is an amenable number.

331233013 is a deficient number, since it is larger than the sum of its proper divisors (1).

331233013 is an equidigital number, since it uses as much as digits as its factorization.

331233013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 331233013 is about 18199.8080484383. The cubic root of 331233013 is about 691.9019241595.

Adding to 331233013 its reverse (310332133), we get a palindrome (641565146).

The spelling of 331233013 in words is "three hundred thirty-one million, two hundred thirty-three thousand, thirteen".