30120121121 has 8 divisors (see below), whose sum is σ = 30422683200. Its totient is φ = 29817644400.

The previous prime is 30120121117. The next prime is 30120121133. The reversal of 30120121121 is 12112102103.

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 30120121121 - 2² = 30120121117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120121096 and 30120121105.

It is not an unprimeable number, because it can be changed into a prime (30120124121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875870 + ... + 909608.

It is an arithmetic number, because the mean of its divisors is an integer number (3802835400).

Almost surely, 2^30120121121 is an apocalyptic number.

It is an amenable number.

30120121121 is a deficient number, since it is larger than the sum of its proper divisors (302562079).

30120121121 is a wasteful number, since it uses less digits than its factorization.

30120121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42679.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30120121121 its reverse (12112102103), we get a palindrome (42232223224).

The spelling of 30120121121 in words is "thirty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".