30232231133 has 4 divisors (see below), whose sum is σ = 32557787388. Its totient is φ = 27906674880.

The previous prime is 30232231111. The next prime is 30232231147. The reversal of 30232231133 is 33113223203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16973399524 + 13258831609 = 130282^2 + 115147^2 .

It is a cyclic number.

It is not a de Polignac number, because 30232231133 - 2¹² = 30232227037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30232231099 and 30232231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232231103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162778108 + ... + 1162778133.

It is an arithmetic number, because the mean of its divisors is an integer number (8139446847).

Almost surely, 2^30232231133 is an apocalyptic number.

It is an amenable number.

30232231133 is a deficient number, since it is larger than the sum of its proper divisors (2325556255).

30232231133 is a wasteful number, since it uses less digits than its factorization.

30232231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325556254.

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

Adding to 30232231133 its reverse (33113223203), we get a palindrome (63345454336).

The spelling of 30232231133 in words is "thirty billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty-three".