331230133 has 8 divisors (see below), whose sum is σ = 368216576. Its totient is φ = 295887600.

The previous prime is 331230131. The next prime is 331230139. The reversal of 331230133 is 331032133.

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

It is a cyclic number.

It is not a de Polignac number, because 331230133 - 2¹ = 331230131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331230133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331230131) 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, 410553 + ... + 411358.

It is an arithmetic number, because the mean of its divisors is an integer number (46027072).

Almost surely, 2^331230133 is an apocalyptic number.

It is an amenable number.

331230133 is a deficient number, since it is larger than the sum of its proper divisors (36986443).

331230133 is a wasteful number, since it uses less digits than its factorization.

331230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821955.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 331230133 is about 18199.7289265527. The cubic root of 331230133 is about 691.8999188408.

Adding to 331230133 its reverse (331032133), we get a palindrome (662262266).

The spelling of 331230133 in words is "three hundred thirty-one million, two hundred thirty thousand, one hundred thirty-three".