30242343521 has 8 divisors (see below), whose sum is σ = 32806407144. Its totient is φ = 27712241280.

The previous prime is 30242343473. The next prime is 30242343559. The reversal of 30242343521 is 12534324203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13653025 + 30228690496 = 3695^2 + 173864^2 .

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 30242343521 - 2⁶ = 30242343457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30242343821) 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, 8488490 + ... + 8492051.

It is an arithmetic number, because the mean of its divisors is an integer number (4100800893).

Almost surely, 2^30242343521 is an apocalyptic number.

It is an amenable number.

30242343521 is a deficient number, since it is larger than the sum of its proper divisors (2564063623).

30242343521 is a wasteful number, since it uses less digits than its factorization.

30242343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16980691.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 30242343521 its reverse (12534324203), we get a palindrome (42776667724).

The spelling of 30242343521 in words is "thirty billion, two hundred forty-two million, three hundred forty-three thousand, five hundred twenty-one".