30312023321133 has 12 divisors (see below), whose sum is σ = 43784130654940. Its totient is φ = 20207970792576.

The previous prime is 30312023321081. The next prime is 30312023321141. The reversal of 30312023321133 is 33112332021303.

30312023321133 is a `hidden beast` number, since 3 + 0 + 3 + 1 + 202 + 3 + 321 + 133 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14721671155689 + 15590352165444 = 3836883^2 + 3948462^2 .

It is not a de Polignac number, because 30312023321133 - 2¹⁰ = 30312023320109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30312023321097 and 30312023321106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312021321133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 856773 + ... + 7833141.

Almost surely, 2^{30312023321133} is an apocalyptic number.

It is an amenable number.

30312023321133 is a deficient number, since it is larger than the sum of its proper divisors (13472107333807).

30312023321133 is a wasteful number, since it uses less digits than its factorization.

30312023321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459148 (or 7459145 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 30312023321133 its reverse (33112332021303), we get a palindrome (63424355342436).

The spelling of 30312023321133 in words is "thirty trillion, three hundred twelve billion, twenty-three million, three hundred twenty-one thousand, one hundred thirty-three".