321230133 has 24 divisors (see below), whose sum is σ = 541112000. Its totient is φ = 183558312.

The previous prime is 321230123. The next prime is 321230137. The reversal of 321230133 is 331032123.

It is a de Polignac number, because none of the positive numbers 2^k-321230133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321230137) 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, 48943 + ... + 55116.

Almost surely, 2^321230133 is an apocalyptic number.

It is an amenable number.

321230133 is a deficient number, since it is larger than the sum of its proper divisors (219881867).

321230133 is a wasteful number, since it uses less digits than its factorization.

321230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104086 (or 104069 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 321230133 is about 17922.8941022369. The cubic root of 321230133 is about 684.8657154144.

Adding to 321230133 its reverse (331032123), we get a palindrome (652262256).

The spelling of 321230133 in words is "three hundred twenty-one million, two hundred thirty thousand, one hundred thirty-three".