30242313221 has 4 divisors (see below), whose sum is σ = 31217871744. Its totient is φ = 29266754700.

The previous prime is 30242313191. The next prime is 30242313253. The reversal of 30242313221 is 12231324203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30242313221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242313271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487779215 + ... + 487779276.

It is an arithmetic number, because the mean of its divisors is an integer number (7804467936).

Almost surely, 2^30242313221 is an apocalyptic number.

30242313221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30242313221 is a deficient number, since it is larger than the sum of its proper divisors (975558523).

30242313221 is an equidigital number, since it uses as much as digits as its factorization.

30242313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975558522.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30242313221 its reverse (12231324203), we get a palindrome (42473637424).

The spelling of 30242313221 in words is "thirty billion, two hundred forty-two million, three hundred thirteen thousand, two hundred twenty-one".