331326523 has 8 divisors (see below), whose sum is σ = 377162496. Its totient is φ = 288109800.

The previous prime is 331326469. The next prime is 331326533. The reversal of 331326523 is 325623133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331326523 - 2¹⁷ = 331195451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331326491 and 331326500.

It is not an unprimeable number, because it can be changed into a prime (331326533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654543 + ... + 655048.

It is an arithmetic number, because the mean of its divisors is an integer number (47145312).

Almost surely, 2^331326523 is an apocalyptic number.

331326523 is a deficient number, since it is larger than the sum of its proper divisors (45835973).

331326523 is a wasteful number, since it uses less digits than its factorization.

331326523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309625.

The product of its digits is 9720, while the sum is 28.

The square root of 331326523 is about 18202.3768502907. The cubic root of 331326523 is about 691.9670280380.

Adding to 331326523 its reverse (325623133), we get a palindrome (656949656).

The spelling of 331326523 in words is "three hundred thirty-one million, three hundred twenty-six thousand, five hundred twenty-three".