30123241221 has 16 divisors (see below), whose sum is σ = 40321370880. Its totient is φ = 20003705280.

The previous prime is 30123241219. The next prime is 30123241223. The reversal of 30123241221 is 12214232103.

It is an interprime number because it is at equal distance from previous prime (30123241219) and next prime (30123241223).

It is not a de Polignac number, because 30123241221 - 2¹ = 30123241219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123241223) 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 15 ways as a sum of consecutive naturals, for example, 2050420 + ... + 2065058.

It is an arithmetic number, because the mean of its divisors is an integer number (2520085680).

Almost surely, 2^30123241221 is an apocalyptic number.

It is an amenable number.

30123241221 is a deficient number, since it is larger than the sum of its proper divisors (10198129659).

30123241221 is a wasteful number, since it uses less digits than its factorization.

30123241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17276.

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

Adding to 30123241221 its reverse (12214232103), we get a palindrome (42337473324).

The spelling of 30123241221 in words is "thirty billion, one hundred twenty-three million, two hundred forty-one thousand, two hundred twenty-one".