30213242121 has 8 divisors (see below), whose sum is σ = 40452877440. Its totient is φ = 20057884112.

The previous prime is 30213242099. The next prime is 30213242123. The reversal of 30213242121 is 12124231203.

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 30213242121 - 2⁵ = 30213242089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30213242123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21068490 + ... + 21069923.

It is an arithmetic number, because the mean of its divisors is an integer number (5056609680).

Almost surely, 2^30213242121 is an apocalyptic number.

It is an amenable number.

30213242121 is a deficient number, since it is larger than the sum of its proper divisors (10239635319).

30213242121 is a wasteful number, since it uses less digits than its factorization.

30213242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42138655.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30213242121 its reverse (12124231203), we get a palindrome (42337473324).

The spelling of 30213242121 in words is "thirty billion, two hundred thirteen million, two hundred forty-two thousand, one hundred twenty-one".