30320442133 has 8 divisors (see below), whose sum is σ = 31142839352. Its totient is φ = 29498198976.

The previous prime is 30320442109. The next prime is 30320442137. The reversal of 30320442133 is 33124402303.

It can be written as a sum of positive squares in 4 ways, for example, as 15906758884 + 14413683249 = 126122^2 + 120057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30320442133 - 2¹⁷ = 30320311061 is a prime.

It is a super-2 number, since 2×30320442133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30320442098 and 30320442107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320442137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439891 + ... + 504127.

It is an arithmetic number, because the mean of its divisors is an integer number (3892854919).

Almost surely, 2^30320442133 is an apocalyptic number.

It is an amenable number.

30320442133 is a deficient number, since it is larger than the sum of its proper divisors (822397219).

30320442133 is a wasteful number, since it uses less digits than its factorization.

30320442133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77031.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 30320442133 its reverse (33124402303), we get a palindrome (63444844436).

The spelling of 30320442133 in words is "thirty billion, three hundred twenty million, four hundred forty-two thousand, one hundred thirty-three".