30123102121 has 8 divisors (see below), whose sum is σ = 34427456960. Its totient is φ = 25819010928.

The previous prime is 30123102089. The next prime is 30123102197. The reversal of 30123102121 is 12120132103.

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 30123102121 - 2⁵ = 30123102089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30123102095 and 30123102104.

It is not an unprimeable number, because it can be changed into a prime (30123102221) 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, 380635 + ... + 452911.

It is an arithmetic number, because the mean of its divisors is an integer number (4303432120).

Almost surely, 2^30123102121 is an apocalyptic number.

It is an amenable number.

30123102121 is a deficient number, since it is larger than the sum of its proper divisors (4304354839).

30123102121 is an equidigital number, since it uses as much as digits as its factorization.

30123102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131823.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30123102121 its reverse (12120132103), we get a palindrome (42243234224).

The spelling of 30123102121 in words is "thirty billion, one hundred twenty-three million, one hundred two thousand, one hundred twenty-one".