30321011005 has 4 divisors (see below), whose sum is σ = 36385213212. Its totient is φ = 24256808800.

The previous prime is 30321010963. The next prime is 30321011023. The reversal of 30321011005 is 50011012303.

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 12871129401 + 17449881604 = 113451^2 + 132098^2 .

It is not a de Polignac number, because 30321011005 - 2²³ = 30312622397 is a prime.

It is a super-2 number, since 2×30321011005² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30321011005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3032101096 + ... + 3032101105.

It is an arithmetic number, because the mean of its divisors is an integer number (9096303303).

Almost surely, 2^30321011005 is an apocalyptic number.

It is an amenable number.

30321011005 is a deficient number, since it is larger than the sum of its proper divisors (6064202207).

30321011005 is an equidigital number, since it uses as much as digits as its factorization.

30321011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064202206.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 30321011005 its reverse (50011012303), we get a palindrome (80332023308).

The spelling of 30321011005 in words is "thirty billion, three hundred twenty-one million, eleven thousand, five".