30575021121 has 12 divisors (see below), whose sum is σ = 44358477072. Its totient is φ = 20293551576.

The previous prime is 30575021119. The next prime is 30575021137. The reversal of 30575021121 is 12112057503.

30575021121 is a `hidden beast` number, since 30 + 5 + 7 + 502 + 1 + 121 = 666.

It is not a de Polignac number, because 30575021121 - 2¹ = 30575021119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30575021111) 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 11 ways as a sum of consecutive naturals, for example, 7480831 + ... + 7484916.

It is an arithmetic number, because the mean of its divisors is an integer number (3696539756).

Almost surely, 2^30575021121 is an apocalyptic number.

It is an amenable number.

30575021121 is a deficient number, since it is larger than the sum of its proper divisors (13783455951).

30575021121 is a wasteful number, since it uses less digits than its factorization.

30575021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14965980 (or 14965977 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

Adding to 30575021121 its reverse (12112057503), we get a palindrome (42687078624).

The spelling of 30575021121 in words is "thirty billion, five hundred seventy-five million, twenty-one thousand, one hundred twenty-one".