30042065321 has 4 divisors (see below), whose sum is σ = 31809245652. Its totient is φ = 28274884992.

The previous prime is 30042065303. The next prime is 30042065357. The reversal of 30042065321 is 12356024003.

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 25023759721 + 5018305600 = 158189^2 + 70840^2 .

It is a cyclic number.

It is not a de Polignac number, because 30042065321 - 2⁶ = 30042065257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30042065371) 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, 883590140 + ... + 883590173.

It is an arithmetic number, because the mean of its divisors is an integer number (7952311413).

Almost surely, 2^30042065321 is an apocalyptic number.

It is an amenable number.

30042065321 is a deficient number, since it is larger than the sum of its proper divisors (1767180331).

30042065321 is a wasteful number, since it uses less digits than its factorization.

30042065321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767180330.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 30042065321 its reverse (12356024003), we get a palindrome (42398089324).

The spelling of 30042065321 in words is "thirty billion, forty-two million, sixty-five thousand, three hundred twenty-one".