30321330133 has 4 divisors (see below), whose sum is σ = 31140825580. Its totient is φ = 29501834688.

The previous prime is 30321330131. The next prime is 30321330187. The reversal of 30321330133 is 33103312303.

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 17993003044 + 12328327089 = 134138^2 + 111033^2 .

It is a cyclic number.

It is not a de Polignac number, because 30321330133 - 2¹ = 30321330131 is a prime.

It is a super-2 number, since 2×30321330133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321330131) 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, 409747668 + ... + 409747741.

It is an arithmetic number, because the mean of its divisors is an integer number (7785206395).

Almost surely, 2^30321330133 is an apocalyptic number.

It is an amenable number.

30321330133 is a deficient number, since it is larger than the sum of its proper divisors (819495447).

30321330133 is an equidigital number, since it uses as much as digits as its factorization.

30321330133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819495446.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 30321330133 its reverse (33103312303), we get a palindrome (63424642436).

The spelling of 30321330133 in words is "thirty billion, three hundred twenty-one million, three hundred thirty thousand, one hundred thirty-three".