331521535240052 has 12 divisors (see below), whose sum is σ = 582257136804420. Its totient is φ = 165162353295936.

The previous prime is 331521535240043. The next prime is 331521535240061. The reversal of 331521535240052 is 250042535125133.

It is an interprime number because it is at equal distance from previous prime (331521535240043) and next prime (331521535240061).

It can be written as a sum of positive squares in 2 ways, for example, as 196257796713616 + 135263738526436 = 14009204^2 + 11630294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331521535239991 and 331521535240009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149603579777 + ... + 149603581992.

It is an arithmetic number, because the mean of its divisors is an integer number (48521428067035).

Almost surely, 2^{331521535240052} is an apocalyptic number.

It is an amenable number.

331521535240052 is a deficient number, since it is larger than the sum of its proper divisors (250735601564368).

331521535240052 is a wasteful number, since it uses less digits than its factorization.

331521535240052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299207162050 (or 299207162048 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 331521535240052 in words is "three hundred thirty-one trillion, five hundred twenty-one billion, five hundred thirty-five million, two hundred forty thousand, fifty-two".