30032321121 has 18 divisors (see below), whose sum is σ = 47682171810. Its totient is φ = 18201406080.

The previous prime is 30032321119. The next prime is 30032321173. The reversal of 30032321121 is 12112323003.

30032321121 is a `hidden beast` number, since 300 + 32 + 321 + 12 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29821490721 + 210830400 = 172689^2 + 14520^2 .

It is not a de Polignac number, because 30032321121 - 2¹ = 30032321119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30032321094 and 30032321103.

It is not an unprimeable number, because it can be changed into a prime (30032321191) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13787856 + ... + 13790033.

It is an arithmetic number, because the mean of its divisors is an integer number (2649009545).

Almost surely, 2^30032321121 is an apocalyptic number.

It is an amenable number.

30032321121 is a deficient number, since it is larger than the sum of its proper divisors (17649850689).

30032321121 is a wasteful number, since it uses less digits than its factorization.

30032321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27577917 (or 27577903 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30032321121 its reverse (12112323003), we get a palindrome (42144644124).

It can be divided in two parts, 30032 and 321121, that added together give a palindrome (351153).

The spelling of 30032321121 in words is "thirty billion, thirty-two million, three hundred twenty-one thousand, one hundred twenty-one".