331221031212113 has 8 divisors (see below), whose sum is σ = 378538627398720. Its totient is φ = 283903511528880.

The previous prime is 331221031212053. The next prime is 331221031212119. The reversal of 331221031212113 is 311212130122133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331221031212113 - 2⁴⁸ = 49746054501457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331221031212119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9527198 + ... + 27444663.

It is an arithmetic number, because the mean of its divisors is an integer number (47317328424840).

Almost surely, 2^{331221031212113} is an apocalyptic number.

It is an amenable number.

331221031212113 is a deficient number, since it is larger than the sum of its proper divisors (47317596186607).

331221031212113 is a wasteful number, since it uses less digits than its factorization.

331221031212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38251687.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 331221031212113 its reverse (311212130122133), we get a palindrome (642433161334246).

The spelling of 331221031212113 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, thirty-one million, two hundred twelve thousand, one hundred thirteen".