331583013252 has 36 divisors (see below), whose sum is σ = 838223955660. Its totient is φ = 110520315072.

The previous prime is 331583013239. The next prime is 331583013253. The reversal of 331583013252 is 252310385133.

331583013252 is a `hidden beast` number, since 3 + 315 + 8 + 301 + 32 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 111974559876 + 219608453376 = 334626^2 + 468624^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (331583013253) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 256074 + ... + 853662.

Almost surely, 2^331583013252 is an apocalyptic number.

It is an amenable number.

331583013252 is an abundant number, since it is smaller than the sum of its proper divisors (506640942408).

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

331583013252 is a wasteful number, since it uses less digits than its factorization.

331583013252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613012 (or 613007 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 331583013252 its reverse (252310385133), we get a palindrome (583893398385).

The spelling of 331583013252 in words is "three hundred thirty-one billion, five hundred eighty-three million, thirteen thousand, two hundred fifty-two".