30330302121 has 32 divisors (see below), whose sum is σ = 51861369600. Its totient is φ = 17159990400.

The previous prime is 30330302113. The next prime is 30330302137. The reversal of 30330302121 is 12120303303.

30330302121 is a `hidden beast` number, since 30 + 330 + 302 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 30330302121 - 2³ = 30330302113 is a prime.

It is a super-2 number, since 2×30330302121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30330302094 and 30330302103.

It is not an unprimeable number, because it can be changed into a prime (30330302111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775356 + ... + 813533.

It is an arithmetic number, because the mean of its divisors is an integer number (1620667800).

Almost surely, 2^30330302121 is an apocalyptic number.

It is an amenable number.

30330302121 is a deficient number, since it is larger than the sum of its proper divisors (21531067479).

30330302121 is a wasteful number, since it uses less digits than its factorization.

30330302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589006 (or 1589000 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30330302121 its reverse (12120303303), we get a palindrome (42450605424).

The spelling of 30330302121 in words is "thirty billion, three hundred thirty million, three hundred two thousand, one hundred twenty-one".