331221231030313 has 32 divisors (see below), whose sum is σ = 365651890636032. Its totient is φ = 298161626400000.

The previous prime is 331221231030269. The next prime is 331221231030337. The reversal of 331221231030313 is 313030132122133.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 331221231030313 - 2²⁵ = 331221197475881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331221231030713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747620020 + ... + 748062922.

It is an arithmetic number, because the mean of its divisors is an integer number (11426621582376).

Almost surely, 2^{331221231030313} is an apocalyptic number.

It is an amenable number.

331221231030313 is a deficient number, since it is larger than the sum of its proper divisors (34430659605719).

331221231030313 is a wasteful number, since it uses less digits than its factorization.

331221231030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451585.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 331221231030313 its reverse (313030132122133), we get a palindrome (644251363152446).

The spelling of 331221231030313 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirty-one million, thirty thousand, three hundred thirteen".