331303133131313 has 4 divisors (see below), whose sum is σ = 378632152150080. Its totient is φ = 283974114112548.

The previous prime is 331303133131279. The next prime is 331303133131387. The reversal of 331303133131313 is 313131331303133.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 331303133131313 - 2¹² = 331303133127217 is a prime.

It is a super-2 number, since 2×331303133131313² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 331303133131313.

It is not an unprimeable number, because it can be changed into a prime (331303433131313) 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, 23664509509373 + ... + 23664509509386.

It is an arithmetic number, because the mean of its divisors is an integer number (94658038037520).

Almost surely, 2^{331303133131313} is an apocalyptic number.

It is an amenable number.

331303133131313 is a deficient number, since it is larger than the sum of its proper divisors (47329019018767).

331303133131313 is an equidigital number, since it uses as much as digits as its factorization.

331303133131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47329019018766.

The product of its (nonzero) digits is 19683, while the sum is 32.

Adding to 331303133131313 its reverse (313131331303133), we get a palindrome (644434464434446).

The spelling of 331303133131313 in words is "three hundred thirty-one trillion, three hundred three billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred thirteen".