331333101220013 has 4 divisors (see below), whose sum is σ = 331436095659420. Its totient is φ = 331230106780608.

The previous prime is 331333101220007. The next prime is 331333101220039. The reversal of 331333101220013 is 310022101333133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292576475087689 + 38756626132324 = 17104867^2 + 6225482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331333101220013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331333101220063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51497214878 + ... + 51497221311.

It is an arithmetic number, because the mean of its divisors is an integer number (82859023914855).

Almost surely, 2^{331333101220013} is an apocalyptic number.

It is an amenable number.

331333101220013 is a deficient number, since it is larger than the sum of its proper divisors (102994439407).

331333101220013 is a wasteful number, since it uses less digits than its factorization.

331333101220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102994439406.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 331333101220013 its reverse (310022101333133), we get a palindrome (641355202553146).

The spelling of 331333101220013 in words is "three hundred thirty-one trillion, three hundred thirty-three billion, one hundred one million, two hundred twenty thousand, thirteen".