331200030021 has 16 divisors (see below), whose sum is σ = 509152009344. Its totient is φ = 187582316544.

The previous prime is 331200030001. The next prime is 331200030059. The reversal of 331200030021 is 120030002133.

It is not a de Polignac number, because 331200030021 - 2⁵ = 331200029989 is a prime.

It is a super-2 number, since 2×331200030021² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331200030001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69782716 + ... + 69787461.

It is an arithmetic number, because the mean of its divisors is an integer number (31822000584).

Almost surely, 2^331200030021 is an apocalyptic number.

It is an amenable number.

331200030021 is a deficient number, since it is larger than the sum of its proper divisors (177951979323).

331200030021 is a wasteful number, since it uses less digits than its factorization.

331200030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139570300.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 331200030021 its reverse (120030002133), we get a palindrome (451230032154).

The spelling of 331200030021 in words is "three hundred thirty-one billion, two hundred million, thirty thousand, twenty-one".