331021202132052 has 72 divisors (see below), whose sum is σ = 854115286326120. Its totient is φ = 108065740907520.

The previous prime is 331021202132051. The next prime is 331021202132059. The reversal of 331021202132052 is 250231202120133.

331021202132052 is a `hidden beast` number, since 3 + 31 + 0 + 212 + 0 + 213 + 205 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 51817237956 + 330969384894096 = 227634^2 + 18192564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331021202132051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322960977 + ... + 323984312.

It is an arithmetic number, because the mean of its divisors is an integer number (11862712310085).

Almost surely, 2^{331021202132052} is an apocalyptic number.

It is an amenable number.

331021202132052 is an abundant number, since it is smaller than the sum of its proper divisors (523094084194068).

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

331021202132052 is a wasteful number, since it uses less digits than its factorization.

331021202132052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646945593 (or 646945588 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 331021202132052 its reverse (250231202120133), we get a palindrome (581252404252185).

The spelling of 331021202132052 in words is "three hundred thirty-one trillion, twenty-one billion, two hundred two million, one hundred thirty-two thousand, fifty-two".