331111302020 has 12 divisors (see below), whose sum is σ = 695333734284. Its totient is φ = 132444520800.

The previous prime is 331111301957. The next prime is 331111302031. The reversal of 331111302020 is 20203111133.

It can be written as a sum of positive squares in 2 ways, for example, as 58529157184 + 272582144836 = 241928^2 + 522094^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 331111302020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8277782531 + ... + 8277782570.

It is an arithmetic number, because the mean of its divisors is an integer number (57944477857).

Almost surely, 2^331111302020 is an apocalyptic number.

It is an amenable number.

331111302020 is an abundant number, since it is smaller than the sum of its proper divisors (364222432264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331111302020 is a wasteful number, since it uses less digits than its factorization.

331111302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16555565110 (or 16555565108 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 331111302020 its reverse (20203111133), we get a palindrome (351314413153).

The spelling of 331111302020 in words is "three hundred thirty-one billion, one hundred eleven million, three hundred two thousand, twenty".