30421024133 has 4 divisors (see below), whose sum is σ = 30432125388. Its totient is φ = 30409922880.

The previous prime is 30421024097. The next prime is 30421024141. The reversal of 30421024133 is 33142012403.

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 22124182564 + 8296841569 = 148742^2 + 91087^2 .

It is a cyclic number.

It is not a de Polignac number, because 30421024133 - 2⁶ = 30421024069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30421024099 and 30421024108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421824133) 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, 5546516 + ... + 5551997.

It is an arithmetic number, because the mean of its divisors is an integer number (7608031347).

Almost surely, 2^30421024133 is an apocalyptic number.

It is an amenable number.

30421024133 is a deficient number, since it is larger than the sum of its proper divisors (11101255).

30421024133 is a wasteful number, since it uses less digits than its factorization.

30421024133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101254.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30421024133 its reverse (33142012403), we get a palindrome (63563036536).

The spelling of 30421024133 in words is "thirty billion, four hundred twenty-one million, twenty-four thousand, one hundred thirty-three".