331121220212313 has 12 divisors (see below), whose sum is σ = 478286378442288. Its totient is φ = 220747401002040.

The previous prime is 331121220212273. The next prime is 331121220212347. The reversal of 331121220212313 is 313212022121133.

331121220212313 is a `hidden beast` number, since 3 + 3 + 1 + 12 + 122 + 0 + 212 + 313 = 666.

It is not a de Polignac number, because 331121220212313 - 2¹² = 331121220208217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331121220219313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31462906 + ... + 40646732.

It is an arithmetic number, because the mean of its divisors is an integer number (39857198203524).

Almost surely, 2^{331121220212313} is an apocalyptic number.

It is an amenable number.

331121220212313 is a deficient number, since it is larger than the sum of its proper divisors (147165158229975).

331121220212313 is a wasteful number, since it uses less digits than its factorization.

331121220212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189924 (or 13189921 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 331121220212313 its reverse (313212022121133), we get a palindrome (644333242333446).

The spelling of 331121220212313 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, three hundred thirteen".