321232030133 has 20 divisors (see below), whose sum is σ = 374895105708. Its totient is φ = 275233956480.

The previous prime is 321232030111. The next prime is 321232030151. The reversal of 321232030133 is 331030232123.

It can be written as a sum of positive squares in 2 ways, for example, as 191982432964 + 129249597169 = 438158^2 + 359513^2 .

It is not a de Polignac number, because 321232030133 - 2¹⁴ = 321232013749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 321232030099 and 321232030108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321232030433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6441053 + ... + 6490733.

Almost surely, 2^321232030133 is an apocalyptic number.

It is an amenable number.

321232030133 is a deficient number, since it is larger than the sum of its proper divisors (53663075575).

321232030133 is an frugal number, since it uses more digits than its factorization.

321232030133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52402 (or 52381 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 321232030133 its reverse (331030232123), we get a palindrome (652262262256).

The spelling of 321232030133 in words is "three hundred twenty-one billion, two hundred thirty-two million, thirty thousand, one hundred thirty-three".